8. An organization published an article stating that in any one-year period, approximately 8.3 percent of adults in a country suffer from depression or a depressive illness. Suppose that in a survey of 100 people in a certain town, seven of them suffered from depression or a depressive illness. Conduct a hypothesis test to determine if the true proportion of people in that town suffering from depression or a depressive illness is lower than the percent in the general adult population in the country.
Part (a)
Is this a test of one mean or proportion?
State the null and alternative hypotheses.
Is this a right-tailed, left-tailed, or two-tailed test?
What symbol represents the random variable for this test?
In words, define the random variable for this test.
Calculate the following.
(i) Enter your answer as a whole number.
x =
(ii) Enter your answer as a whole number.
n =
(iii) Enter your answer to two decimal places.
p' =
Part (g)
Calculate σx. (Round your answer to three decimal places.)
Show the formula set-up.
State the distribution to use for the hypothesis test.
Find the p-value. (Round your answer to four decimal places.)

Answers

Answer 1

[tex]z = \frac{0.08 - 0.083}{\sqrt{0.083 * 0.917/100} }[/tex]

  = 0.108

pₐ = P( z < -0.108 ) = 0.4562

So the p-value obtained was a very high value and using the significance level given  we have  so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of people with depression or a depressive illness is not significantly lower than 0.083 (8.3%)

Data given and notation

n = 100 represent the random sample taken

X=8 represent the people with depression or a depressive illness

p = 8/100 = 0.08 estimated proportion of people with depression or a depressive illness

p₀ = 0.083  is the value that we want to test

α = 0.05 represent the significance level  assumed

Confidence = 83% or 0.83  assumed

z  would represent the statistic (variable of interest)

pₐ represent the p value (variable of interest)  

Concepts and formulas to use  

We need to conduct a hypothesis in order to test the claim that the true proportions of people with depression or a depressive illness is lower than the general adult population value of 8.3% or 0.083:  

Null hypothesis:  

p ≥ 0.083

Alternative hypothesis:  

p < 0.083

When we conduct a proportion test we need to use the z statistic, and the is given by:

[tex]z = \frac{p- p_{0} }{\sqrt{p_{0} ( 1 - p_{0} )/ n } }[/tex]                       ---------------------  (1)  

The One-Sample Proportion Test is used to assess whether a population proportion  is significantly different from a hypothesized value .

Calculate the statistic  

Since we have all the info requires we can replace in formula (1) like this:  

[tex]z = \frac{0.08- 0.083 }{\sqrt{0.083 ( 1 - 0.083 )/ 100 } }[/tex]

 =  - 0.083 / √ 0.0076

 = -0.083 / 0.028

 = -0.108

It's important to refresh the p value method or p value approach . "This method is about determining "likely" or "unlikely" by determining the probability assuming the null hypothesis were true of observing a more extreme test statistic in the direction of the alternative hypothesis than the one observed". Or in other words is just a method to have an statistical decision to fail to reject or reject the null hypothesis.  

The significance level assumed is α = 0.05 . The next step would be calculate the p value for this test.  

Since is a left tailed test the p value would be:  

     pₐ = P( z < -0.108 ) = 0.4562

So the p value obtained was a very high value and using the significance level given  we have  so we can conclude that we have enough evidence to FAIL to reject the null hypothesis, and we can said that at 5% of significance the proportion of people with depression or a depressive illness is not significantly lower than 0.083 (8.3%).

Learn more about Null Hypothesis:

https://brainly.com/question/28920252

#SPJ4


Related Questions

Pam, a frequent business traveler, is considering signing up for a hotel rewards program. Hotel Elegance is currently offering 748 points for signing up, plus 86 points for every night Pam books at the hotel. Alternatively, Hotel Paradiso is offering a sign-up bonus of 734 points, plus 87 points per night. If Pam books a certain number of nights, the points she earns with either hotel will be the same. How many nights will that be? How many points will she have?

Answers

Answer:

Step-by-step explanation: x is the number of days she is booked.

List an equation

748+86x=734+87x

x=14

14 nights and plugging x into the equation 1952 points

Is the converse of the following conditional True or False? "If a polygon is a triangle, then it has exactly three sides."


Answers

The converse of the following conditional True which is If a polygon is a triangle, then it has exactly three sides."

What is the triangle?

In terms of geometry, a triangle is a three-sided polygon with three edges and three vertices. The triangle's interior angles add up to 180°.

A polygon has precisely three sides if it is a triangle. The opposite is also accurate.

Contrarily, a polygon is a triangle if it has precisely three sides. Both of the statements can be joined to create a biconditional because they are both true.

Thus, the converse of the following conditional True which is If a polygon is a triangle, then it has exactly three sides."

Learn more about the triangle here:

brainly.com/question/25813512

#SPJ1

suppose x is a normal random variable with exam image and exam image find p(3.6 < x < 53.5). a) exam image b) exam image c) exam image d) exam image e) exam image f) none of the above.

Answers

After using the test statistic z, P(3.6<X<53.5) = 0.967.

In the given question, suppose X is a normal random variable with mean 35 and sdev 10.

We have to find P(3.6<X<53.5).

Fro the given question,

Mean x = 35

sdev s = 10

Z = X - mu / sd

P(3.6<X<53.5) = P ( 3.6-35/10 < Z < 53.5-35/10 )

P(3.6<X<53.5) = P ( -31.4/10 < Z < 18.5/10 )

P(3.6<X<53.5) = P ( -3.14 < Z < 1.85 )

P(3.6<X<53.5) = P ( Z < 1.85) - P ( Z < -3.14)

left tail of both

P(3.6<X<53.5) = 0.9678 - 0.0008

P(3.6<X<53.5) = 0.967

To learn more about test statistic z link is here

brainly.com/question/3006526

#SPJ4

The right answer is:

Suppose X is a normal random variable with mean 35 and sdev 10. Find P(3.6<X<53.5)

two poles are connected by a wire that is also connected to the ground. the first pole is 20 ft tall and the second pole is 10 ft tall. there is a distance of 30 ft between the two poles. where should the wire be anchored to the ground (in ft, from the shorter pole) to minimize the amount of wire needed?

Answers

The wire should be anchored to the ground to minimize the amount of wire needed 20 ft from the left pole.

What is the quadratic equation?

ax2 + bx + c = 0 is a quadratic equation, which is a second-order polynomial equation in a single variable. a 0. It has at least one solution because it is a second-order polynomial equation, which is guaranteed by the algebraic fundamental theorem. The answer could be simple or complicated.

Let x (ft) be the distance from the base of the left pole to the anchor point. Since 2 poles has a distance of 30 ft, the distance from the anchor point to the right pole is 30 - x.

The wire length from the top of the left pole to the anchor point is

[tex]L^{2} _{l} = 20^{2} + x^{2} = x^{2} + 400[/tex]

Similarly for the 2nd part of the wire

[tex]L^{2} _{t} = 10^{2} + (30 - x^{2})[/tex]

= 100 + 900 - 60x + x²

= x²+ 1000 - 60x

We want to minimize the length of the wires, or [tex]L^{2} _{l} + L^{2} _{r}[/tex]

[tex]\frac{x}{\sqrt{{x}^2 + 400} } + \frac{x - 30}{\sqrt{{x}^2 + 400}} = 0[/tex]

we can take the first derivative of this and set it to 0

x = 20

Hence, the wire should be anchored to the ground to minimize the amount of wire needed  20ft.

To learn more about the quadratic equation visit,

https://brainly.com/question/1214333

#SPJ4

Why do we take the square root of the mean squared error to calculate the root mean squared error?.

Answers

The square in RMSE is utilized because it consistently provides a positive number for error, preventing errors from canceling one another out, and grants higher weight to values further from the target function, emphasizing locations for which the estimator is unreliable. To reverse the results of squaring, use the square root. 

What is RMSE?

The difference between values (sample or population values) predicted by a model or estimator and the values observed is typically measured using the root-mean-square deviation (RMSD) or root-mean-square error (RMSE).

The RMSD is the quadratic mean of the square root of the second sample moment of the discrepancies between expected values and observed values.

When computations are made outside of the data sample that was used for estimation, the deviations are referred to as errors (or prediction errors) instead of residuals.

The RMSD is used to combine the sizes of predictions' mistakes for different data points into a single indicator of predictive power. .

RMSD is a metric for accuracy that is used to compare the predicting mistakes of various models.

Hence, The square in RMSE is utilized because it consistently provides a positive number for error, preventing errors from canceling one another out, and grants higher weight to values further from the target function, emphasizing locations for which the estimator is unreliable. To reverse the results of squaring, use the square root. 

Learn more about RMSE click here:

https://brainly.com/question/28331472

#SPJ4


Exponential Growth
Graph: y = 2*
20
-1
O
X
1
2
y
Growth
b>1

Answers

Answer:

it's 20 if u look closely

Calculate the margin of error for a ampling ditribution that ha a ize of 36 for a 93% confidence level. The population tandard deviation i known to be 12

Answers

The margin of error for a sampling distribution is found as 3.34.

Explain the term margin of error?The margin of error, sometimes known as the confidence interval, provides information on how closely your survey results will likely reflect the opinions of the general community. Keep in mind that conducting surveys requires you to strike a balance by using a smaller group (the survey respondents) to represent a much broader one.

Margin of error = z × σ/√n

n = sample size (36)σ = population standard deviation  (12) z = z-score

Thus, put the values;

z-score for 93% confidence level = 1.67

Margin of error = 1.67 ×12/√36

Margin of error = 3.34

Thus, the margin of error for a sampling distribution is found as 3.34.

To know more about the margin of error, here

https://brainly.com/question/10218601

#SPJ4

a university charges students $2,300 less for tuition each year to encourage them to stay in school. the tuition for freshman year is $34,000. write a regression equation for this formula, with y

Answers

a regression equation for this formula, where x represents the number of years enrolled and y represents the tuition.

y = 34000 - 2300x

Regression is a statistical technique that connects one or more independent (explanatory) variables to a dependent variable. If there is a relationship between changes in one or more of the explanatory factors and changes in the dependent variable, it can be shown using a regression model.

The regression equation for this formula would be:

Y = 34,000 - 2,300x

where Y is the tuition cost and x is the number of years in school.

The equation states that the tuition cost for any year in school (x) is equal to the freshman year tuition cost (34,000) minus 2,300 multiplied by the number of years in school (x).For example, if x = 4 (4 years in school), then the tuition cost for that year would be 34,000 - 2,300(4) = 25,400.

learn more about regression here

https://brainly.com/question/28178214

#SPJ4

​if you were trying to store a list of single digit numbers in your short-term memory, about how many should you be able to store on average? group of answer choices ​10 ​2 ​15 ​7

Answers

If one tries to store a list of single-digit numbers in his or her short-term memory, then he will be able to store 7 numbers on average.

What is short-term memory?

Short-term memory is a concept in psychology that defines the capacity for holding a small amount of information in mind for a short interval. The concept of short-term memory is given by Atkinson-Shiffrin. The information of short-term memory can be transformed into long-term memory through rehearsal.

According to several studies, short-term memory has a space limit of 7 ± 2 chunks of information. The fact is written by a cognitive psychologist of Harvard University named George A. Miller and was published in 1956 in psychological reviews.

Hence, If one tries to store a list of single-digit numbers in his or her short-term memory, then he will be able to store 7 numbers on average.

To learn more about short-term memory click on the link below

https://brainly.com/question/12121626

#SPJ4

Which of the following Which of the following statements is true about the graphs of f(x)=x and g(x)=f(x+7)?statements is true about the graphs of f(x)=x and g(x)=f(x+7)?

Answers

A statement which is true about the graphs of f(x) = x and g(x) = f(x + 7) is: C. g(x) is the graph of f(x) translated 7 units to the left.

What is a translation?

In Mathematics, the translation a geometric figure or graph to the left simply means subtracting a digit from the value on the x-coordinate of the pre-image while the translation a geometric figure or graph downward simply means subtracting a digit from the value on the y-coordinate (y-axis) of the pre-image.

In Geometry, g(x + 7) or g(x) = f(x + 7) simply means shifting a graph 7 units to the left as illustrated by the graph shown in the image attached below.

In this context, we can reasonably infer and logically deduce that the parent function f(x) = x was shifted by 7 units to the left.

Read more on translation here: brainly.com/question/20720324

#SPJ1

Complete Question:

Which of the following statements is true about the graphs of f(x)=x and g(x)=f(x+7)?

A. g(x) is the graph of f(x) translated 7 units down.

B g(x) and f(x) have the same y-intercept.

C g(x) is the graph of f(x) translated 7 units to the left.

D g(x) is the graph of f(x) translated 7 units to the right.

A school staff meeting had 60 teachers in attendance, 30% of whom were first-year teachers. How many first-year teachers were in the meeting?

Answers

Answer: 18
Explanation: 60 x 0.30 = 18

The longest side of a triangle is a cm. The second side is b cm shorter than the first side. The third side is half as long as the second side.
Write an expression, in its simplest form, for the perimeter of the triangle.

Answers

Answer:

2.5a - 1.5 b or

5/2a - 3/2b

Step-by-step explanation:

a + (a - b) + 0.5(a - b) =

a + a - b + 0.5a - 0.5b =

2a - b + 0.5a - 0.5b =

2a - 1.5 b + 0.5a  =

2.5a - 1.5 b

based on a sample of size 41, a 95% confidence interval for the mean score of all students, μ, on an aptitude test is from 60 to 66. find the margin of error.

Answers

To find the margin of error we have to use the formula,

Margin of error =  Z * ơ / √n ,

Where

z = critical factor

ơ = population standard deviation

n = sample size

Now we have to find confidence interval

Confidence interval can be defined as a range of values so defined that there is a specified probability that the value of a parameter lies within it.

The confidence interval of a statistical data can be written as.

x+/-zr/√n

x+/-ME

Where margin of error ME = zr/√n

Given that;

Mean = ц

Standard deviation r = 25

Number of samples n = 41

Confidence interval = 95%

z(at 95% confidence) = 1.96

Xbar = 60.............(1)

Xbar + E = 66.........(2)

from equating both the equations we get

E= 6

and for finding the value of margin of error we know that its the half of the E

Margin of error = E/2

=6/2

=3

Therefore , the Margin of error is 3

To know more about the margin of error

https://brainly.com/question/16835723

#SPJ4

Convert these unlike fractions to equivalent like fractions and add them. You must use the lcd to get the answer correct. If possible, reduce the final sum. 14512.

Answers

Unlike fraction 1/7 is converted to equivalent  like fraction 2/14 and the sum of 2/14 + 3/14 = 5/14.

As given in the question,

Given fraction is equal to:

1/7=? + 3/14=?

Here there are two fractions

1/7 and 3/14

LCD( least common denominator) of 7 and 14 is equal to 14.

Now make them like fractions

1/7 is equivalent to

( 1/7) × ( 2/2) = 2/ 14

Now 2/14 and 3/14 are like fractions

Sum of like fractions is:

2/14 + 3/14

= ( 2+ 3) / 14

= 5/ 14

Therefore, the conversion of unlike fraction 1/7 to like fraction is 2/14. And sum of 2/14 + 3/14 = 5/14.

The complete question is:

Convert these unlike fractions to equivalent like fractions and add them. You must use the LCD to get the answer correct. If possible, reduce the final sum. 1/7=? + 3/14=?

Learn more about fractions here

brainly.com/question/10354322

#SPJ4

Eliza solves the equation (x-7)^2 = 25 and gets X = 12. Winnie solves the same equation and finds a different solution. What is the other solution to the problem?

Answers

Answer: 5^2

Step-by-step explanation:

5 x 5 = 25

and (x-7)^2 = 25

The Rodriguez family ate One-third of a pan of brownies, and they plan to divide the remaining brownies into two equal parts. They will take one part to their block party and the other part to share with co-workers. How much of the whole pan of brownies will each place get?
A model has 2 shaded parts and 1 unshaded part.

Answers

Answer:

1

Step-by-step explanation:

The equation to represent this would be (1 - (1 / 3)) / 2

1 - (1 / 3) = 2 / 3

2 / 3 / 2 = 1 / 3

a sample of 17001700 computer chips revealed that 366% of the chips fail in the first 10001000 hours of their use. the company's promotional literature states that 399% of the chips fail in the first 10001000 hours of their use. the quality control manager wants to test the claim that the actual percentage that fail is less than the stated percentage. is there enough evidence at the 0.020.02 level to support the manager's claim? step 1 of 7 : state the null and alternative hypotheses. answer

Answers

After solving, the value of Test statistic z is 1.449.

In the given question,

A sample of 1700 computer chips revealed that 36% of the chips fail in the first 1000 hours of their use.

The company's promotional literature states that 39% of the chips fail in the first 1000 hours of their use.

Then we have to find the value of z statistic.

Hypothesized proportion (p) = 36%=0.36

Sample proportion (p') = 39% = 0.39

Sample size (n) = 1700

Hence,

Test statistic z

z= (0.76-0.78)/√(0.78* 0.22/900)

z= (-0.02)/√(0.78* 0.000244)

z= -0.02/√0.00019032

z= -0.02/0.0138

z = -1.449

To learn more about test statistic z link is here

brainly.com/question/3006526

#SPJ4

In the diagram below of triangle EFGEFG, HH is the midpoint of \overline{EG}
EG
and II is the midpoint of \overline{FG}
FG
. If m\angle GFE=87-7x∠GFE=87−7x, and m\angle GIH=51+2x∠GIH=51+2x, what is the measure of \angle GIH∠GIH?

Answers

Applying the definition of midpoint, the measure of angle GIH in the triangle shown is: 59°.

What are the Corresponding Angles of Similar Triangles?

The corresponding angles of two similar triangles are always congruent to each other.

Given that H is the midpoint of Eg and I is the midpoint of FG, two similar triangles are created, where angles GFE and GIH are corresponding angles.

Given:

m∠GFE = 87 - 7x

m∠GIH = 51 + 2x

m∠GFE = m∠GIH [corresponding angles are congruent]

Substitute

87 - 7x = 51 + 2x

Solve for x

-2x - 7x = 51 - 87

-9x = -36

Divide both sides by -9:

-9x/-9 = -36/-9

x = 4

m∠GIH = 51 + 2x = 51 + 2(4)

m∠GIH = 59°

Learn more about similar triangles on:

https://brainly.com/question/14285697

#SPJ1

a woman decides to purchase a $23,800 car and makes a down payment of $3,500. she arranges to borrow the remainder from a bank that will charge her 4.5% interest. she will make monthly payments for 4 years. a. find her monthly payment amount.

Answers

The monthly payment amount a woman has to pay for the car is $462.91.

Here we have to find the monthly payment amount.

The cost of car = $23,800

Down payment = $3,500

Rate(r) = 4.5%

time(t) = 4 years

Periodic interest(i) = 0.045/12

Formula to calculate monthly payment:

A = P i( 1 + i[tex])^{n}[/tex] / ( 1 + i[tex])^{n}[/tex] - 1

Loan amount = 23800 - 3500

                      = $ 20300

A = 20300 ( 0.045 /12 ( 1 + 0.045/12[tex])^{48}[/tex])/ (1 + 0.045/12[tex])^{48}[/tex] - 1

  = 20300× 0.004488 / 0.196814

  = 462.91

Therefore the monthly payment is $462.91.

To know more about the monthly payment refer to the link given below:

https://brainly.com/question/17143109

#SPJ4

Math Question Attached

Answers

The slope of the straight line is 4/5

Slope of a Line

The slope of a line is a measure of the ratio between the rise and run of that line. The slope of a line is an integral quantity used to calculate the equation of a line

In general, to find the slope of a line, we need to have the values of any two different coordinates on the line.

The slope of a line basically the change in y-coordinate with respect to change in x-coordinate.

This is easily done with a formula given as

m = y₂ - y₁ / x₂ - x₁

Taking data points from the graph attached;

A = (5, 2)B = (0, -2)

Substituting the values into the slope equation;

m = -2 - 2 / 0 - 5

m = -4 / - 5

m = 4/5

Learn more on slope of a line here;

https://brainly.com/question/16949303

#SPJ1

Find the magnitude of the vector v = <-2, 5>.

Answers

Refer to the photo taken.

solve 3^x-6^ =3^4

[tex]3^x^-^6=3^4[/tex]
a)-2
b)4
c)6
d)10

Answers

Step-by-step explanation:

[tex] {3}^{10 - 6} [/tex]

[tex] = {3}^{4} [/tex]

2. Find the slope (rate of change) of a line that passes through (-2, -3) and (1, 1). (1
01
02
4/3

Answers

Answer:

4/3

Step-by-step explanation:

slope = (y_2 - y_1)/(x_2 - x_1)

slope = (-3 - 1)/(-2 - 1)

slope = -4/(-3)

slope = 4/3

Help me solve this question!

Answers

The volume of foam needed for the 45 cones is

v = 16,956 cm³

How much foam is needed to make 45 cones?

We know that the volume of a cone of diameter F and height H is:

V = pi*(D/2)²*H/3

Where pi = 3.14

Here we know that:

D = 12cm

H = 10cm

And we want to find the volume of 45 of these cones, so the total volume of foam needed is:

v = 45*V = 45*(3.14*(12cm/2)²*10cm/3

v = 16,956 cm³

That is the volume of foam needed.

Learn more about cones:

https://brainly.com/question/6613758

#SPJ1

assuming the population standated deviation is known, which of the following statements is true about the standard deviation of the sample mean x

Answers

Assuming the population standard deviation is known and the standard deviation of the sample mean x : option (b) is correct : the standard error of the sample mean decreases.

Central Limit theory:

In probability theory, the central limit theorem (CLT) states that the distribution of a sample variable approximates a normal distribution (i.e., a “bell curve”) as the sample size becomes larger, assuming that all samples are identical in size, and regardless of the population's actual distribution shape.

Standard deviation:

Standard deviation is a calculation of the dispersion or variation in a set of numbers. If the standard deviation is a small number, it means the data points are close to their average value. If the deviation is large, it means the numbers are spread out, further from the mean or average.

There are different ways to write out the steps of the population standard deviation calculation into an equation. A common equation is:

                          σ = ([Σ(x - u)2]/N)1/2

Where:

σ is the population standard deviation

Σ represents the sum or total from 1 to N

x is an individual value

u is the average of the population

N is the total number of the population

Sample Mean:

A sample mean is an average of a set of data . The sample mean can be used to calculate the central tendency, standard deviation and the variance of a data set. The sample mean can be applied to a variety of uses, including calculating population averages.

Learn more about Standard Deviation:

https://brainly.com/question/23907081

#SPJ4

for the given scenario, determine the type of error that was made, if any. (hint: begin by determining the null and alternative hypotheses.) an ice cream truck aims to keep 30 degrees as the mean temperature inside its delivery truck. one employee claims that the mean temperature inside its delivery truck is more than 30 degrees. the employee conducts a hypothesis test and rejects the null hypothesis. assume that in reality, the mean temperature inside its delivery truck is 32 degrees. was an error made? if so, what type?

Answers

There is no error made in claiming that the mean temperature inside the truck is 32 degrees which is 2 degrees more than the required one.

Given, an ice cream truck aims to keep 30 degrees as the mean temperature inside its delivery truck.

one employee claims that the mean temperature inside its delivery truck is more than 30 degrees. the employee conducts a hypothesis test and rejects the null hypothesis.

The mean temperature inside its delivery truck is 32 degrees.

As, the temperature inside the delivery truck should be 30 degrees and should not be greater than 30 degrees then, there is no error made in claiming that the mean temperature inside the truck is 32 degrees which is 2 degrees more than the required one.

So, there is no error made in claiming that the mean temperature inside the truck is 32 degrees which is 2 degrees more than the required one.

Hence, there is no error made in claiming that the mean temperature inside the truck is 32 degrees which is 2 degrees more than the required one.

Learn more about Mean here https://brainly.com/question/14532771

#SPJ4

Which expression is equivalent to ? Assume . m=0 n=0

Answers

7m-(7n-18m) is an expression which is equivalent to (2mn)^4/6m^-3 n^-2 Assume m=0 n=0​

What is a expression in maths?

An expression in math is a sentence with a minimum of two numbers or variables and at least one math operation. This math operation can be addition, subtraction, multiplication, or division. The structure of an expression is: Expression is (Number/variable, Math Operator, Number/variable)

for example 4m +5 where 4 is the coefficient of m and 5 is the constant term in other word 4m and 5 are the term of the expression and m is the variable in the expression and addition is the operator.

m=0, n=0.

8m^7n^6/3 10m^7n^6/3 8m^16n^12/3 m^4n^6/3

-7m-(3n-(8m-4n-10m)

-7m-(3n-(8m-4n+10m))

-7m-(3n-(18m-4n))

-7m-(3n-18m+4n)

-7m-(7n-18m)

complete question is

Which expression is equivalent to (2mn)^4/6m^-3 n^-2? Assume m=0 n=0​

learn more about of expression here

https://brainly.com/question/14361792

#SPJ4

Barbara ell iced tea for $1. 49 per bottle and water for $1. 25 per bottle. She wrote an equation to find the number of bottle he need to ell to earn $100

Answers

The equation representing the number of bottle Barbara need to sell to earn $100 is; 1.49x + 1.25y = 100.

Define the term arithmetic equation?In order to find the next item in the pattern, a specific number is added to each item in the series. The number added, also known as the common difference, must be exactly the same for every phrase in the series.

For the given question-

Price of each iced tea bottle = $1.49.Price of each water bottle = $1.25.

Let the number of iced tea bottle be 'x'.

Let the number of water bottle be 'y'.

Total price = 100

Thus, the equation for the total cost becomes-

1.49x + 1.25y = 100.

Therefore, the equation representing the number of bottle Barbara need to sell to earn $100 is; 1.49x + 1.25y = 100.

To know more about the arithmetic equation, here

https://brainly.com/question/28354530

#SPJ4

sonia can paint a room in 12 hours. roman can paint the same room in 15 hours. how long does it take for both sonia and roman to paint the room it they are working together

Answers

It will take 7 hours to paint a room when Sonia and Roman works together.

Given,

Time taken by  Sonia to paint a room = 12 hours

Time taken by Roma to paint the same room = 15 hours

We have to find the time taken by both of them to paint the room if they work together.

Here,

Sonia takes 12 hours

Roman takes 15 hours

LCM of 12 and 15 = 60

12 × 5 = 60

15 × 4 = 60

Total number of works is 60

Now,

Number of works done by Sonia = 5 in an hour

Number of works done by Roman = 4 in an hour

So,

5 + 4 = 9 work can be done by them together in an hour

Then,

Time taken to complete 60 works;

60/9 = 6.66 ≈ 7 hours

That is,

In 7 hours Sonia and Roman paint a room together.

Learn more about work and time here;

https://brainly.com/question/19427560

#SPJ4

Bicycle Parade There was a parade of bicycles and tricycles. Jackie counted the number of wheels; there were 23 wheels. Tony counted the riders; 10 children were riding. How many bicycles were there and how many tricycles?​

Answers

23 divided by 10 = 2.3
Other Questions
There are 22 girls and 28 boys on the dukes team. Write the ratio of boys to total students on the dukes team Which pairs of figures are congruent? Which pairs are similar? What are the advantages and disadvantages of bases other than ten in what ways do form and content in the poem work together to address past, present, and future, and why? d Zoe rode her motorcycle down a straight freeway at 80kilometersperhour for a total of 4hours. There was a car behind her for one-half of that time. How far did Zoe ride while the car was behind her?Write your answer as a whole number. Today the name machiavelli suggest ruthlessness, ambition and backstabbing politics. What idea in machiavelli's book, the prince, gave him this reputation?. Cecropias are known for the mutualistic relationship they have with which creature?. A skateboarder traveling at 13.6 meters per second rolls rona stop at the top of a ramp in 2.5 seconds. What is the skateboarders acceleration the rapid movement of sand by longshore drift could block access to the mainland by closing gaps in barrier islands and between spits. what steps can be taken to prevent further erosion? A satellite orbits the earth with an elliptical orbit modeled by x squared over 43 million eight hundred twenty four thousand four hundred plus y squared over forty seven million one hundred ninety six thousand nine hundred equals 1 comma where the distances are measured in km. The earth shares the same center as the orbit. If the radius of the earth is 6,370 km, what is the maximum distance between the satellite and the earth?. You have a bag with five different colored marbles in it; red, green, blue, orange, and purple. Each marble has an equal chance ofbeing drawn from the bag and a marble is replaced after each draw.After four draws from the bag what is the probability that you have seen both the red and green marbles at least once? (I NEED HELP URGENTLY, THIS IS DUE TOMORROW!)The table represents a proportional relationship.A. Find the constant of proportionality:B: Write a equation to represent the relationship. Equation: y= Let f(x) = 6x. The graph of f(x) is transformed into the graph of g(x) by a vertical compresion of 1/2 and a translation of 4 units up. Determine the intercepts of the line. Do not round your answers. -6x+3y=-76x+3y=7minus, 6, x, plus, 3, y, equals, minus, 7 xxx-intercept: \Big((left parenthesis ,,comma \Big))right parenthesis yyy-intercept: \Big((left parenthesis ,,comma \Big)) A man is found murdered in his prison cell. The suspects are other prisoners with the prisoner numbers, 56, 49, 37, and 22. The only clues are circles drawn by the victim on a calendar in his cell. The months April, September, March, October, November, and December were circled. Who is the murderer and what is his name? John has an adjustable life insurance policy and he decides that he no longer needs the largeamount of coverage he has. Therefore, as Johns coverage decreases, his premiums:Are increasedAre stoppedRemain constantAre reduced Select the best answer that fills in the blanks to complete this sentence. The slopes that face to the southeast are warmer than the slopes that are facing to the northwest in these data acquired near winter solstice at 10 am in the morning. The reason why the slopes that FACE to the SOUTHEAST are warmer, is because in winter the sun comes up in the morning and is ____BLANK 1 _______. The slopes that face the northwest are steep and at 10am, they would have received ____BLANK 2 _____. The temperature difference is approximately ____BLANK 3 _____ on these two different sides of this canyon, just estimating temperatures from the key.Below are your choices: 2. how long does it take to cook a potato? consider a cylindrical potato, sliced into thin slices with thicknesses l ima rich purchased 100 shares of stockits, inc.'s $1 par value common stock for $5 per share. which statement is true regarding the effect of this transaction on stockits' financial statements? Which three statements help define a Market/Fit Hypothesis? (Choose three)