[tex]\frac{4}{25} *\frac{9}{x}[/tex]
[tex]9*25=4x[/tex]
225=4x
x=225/4
Which two expressions have the same value?
1. 23-82
2. 23 - (8 x 2)
3. (23 -8) x 2
Answer:
Any expression doesn't have the same value
Step-by-step explanation:
1. 23-82Subtract 82 from 23.
−59
2. 23 - (8 x 2)Simplify each term.
Multiply 8 by 2.
23−1⋅16
Multiply −1 by 16.
23−16
Subtract 16 from 23.
7
3. (23 -8) x 2Subtract 8 from 23.
15⋅2
Multiply 15 by 2.
30
Hope it is helpful.....The population of a remote village is about 3 x 102 and the population of the nearest large city is
about 6 x 10%. Determine how many times larger the city population is in comparison to the
village population.
A. 18 x 107
B. 2000
C. 2 x 107
D. 2 x 10
E. 5x102
Answer:
DE
Step-by-step explanation:
Here are the scores of students on a history test. 57,58,61,61,65,71,73,75,77,78,80,82,92 Notice that the scores are ordered from least to greatest. Give the five-number summary and the interquartile range for the data set.
the table shows the cost to take a ferry boat across a lake. Ferry Boat Tickets vehicle | cost cars| $52 Trucks| $75
plss take a pic of your quistion
Step-by-step explanation:
I cant understand plss
Which expression is equivalent to 4√147
A. 28√3
B. 12√7
C. 3√7
Answer:
(A) 28 squared 3
Step-by-step explanation:
Convert 6 fluid ounces into cups.
Answer:
0.75 Of a cup
Step-by-step explanation:
Answer:
0.75 cups
Step-by-step explanation:
1 fluid ounce is 0.125 cups (1/8th of a cup)
Hence,
6 fluid ounces = 0.125 x 6 = 0.75 cups
Which of the following is a unit fraction?
A. 4/9
B. 15/16
C. 3/8
D. 1/8
Answer:
D. 1/8
Step-by-step explanation:
A unit fraction is a fraction with numerator of 1.
Answer:
D 1/8 Because unit factions always have a one as the numarator
In 2009 a survey of Internet usage found that 79 percent of adults age 18 years and older in the United States use the Internet. A broadband company believes that the percent is greater now than it was in 2009 and will conduct a survey. The company plans to construct a 98 percent confidence interval to estimate the current percent and wants the margin of error to be no more than 2.5 percentage points. Assuming that at least 79 percent of adults use the Internet, which of the following should be used to find the sample size (n) needed?
a. 1.96 â0.5/n = 0.025
b. 1.96 â0.5(0.5)/n = 0.25
c. 2.33 â0.5(0.5)/n =0.05
d. 2.33 â0.79(0.21)/n= 0.025
Answer:
[tex]0.025 = 2.33\sqrt{\frac{0.79*0.21}{n}}[/tex]
Option d.
Step-by-step explanation:
In a sample with a number n of people surveyed with a probability of a success of [tex]\pi[/tex], and a confidence level of [tex]1-\alpha[/tex], we have the following confidence interval of proportions.
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which
z is the zscore that has a pvalue of [tex]1 - \frac{\alpha}{2}[/tex].
The margin of error is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
79 percent of adults age 18 years and older in the United States use the Internet.
This means that [tex]\pi = 0.79[/tex]
98% confidence level
So [tex]\alpha = 0.02[/tex], z is the value of Z that has a pvalue of [tex]1 - \frac{0.02}{2} = 0.99[/tex], so [tex]Z = 2.33[/tex].
Which of the following should be used to find the sample size (n) needed?
We have to find n for which [tex]M = 0.025[/tex]
So the equation is:
[tex]M = z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
[tex]0.025 = 2.33\sqrt{\frac{0.79*0.21}{n}}[/tex]
Option d.
Help please I will mark brainly answer:))
Answer:
2 times 30.
Step-by-step explanation:
Answer:
im not 100% sure this is right but i hope it helps!
total cost
100 $ for 2 visits
160 $ for 4 visits
190 $ for 5 visits
280 $ for 8 visits
cost per visit
60 $ for 2 visits
120 $ for 4 visits
150 $ for 5 visits
240 $ for 8 visits
U uhh mmm just help me
You are making sandwiches for a large party. Each sandwich has two slices of bread, one slice of turkey, two slices of cheese, three slices of tomato and 5 slices of cucumber. How many sandwiches will you get from ... 10 slices of bread and 20 slices of cucumber
Question:
You are making sandwiches for a large party. Each sandwich has two slices of bread, one slice of turkey, two slices of cheese, three slices of tomato and 5 slices of cucumber. How many sandwiches will you get from 10 slices of bread and 20 slices of cucumber? assuming you have plenty of everything
Answer:
4 sandwiches
Step-by-step explanation:
Given
1 Sandwich contains:
[tex]Bread = 2\ slices[/tex]
[tex]Turkey = 1\ slice[/tex]
[tex]Cheese = 2\ slices[/tex]
[tex]Tomato = 3\ slices[/tex]
[tex]Cucumber = 5\ slices[/tex]
Required
Number of sandwiches from 10 slices of bread and 20 slices of cucumber?
Since we are to assume that every other thing is in abundance, we will only consider the unit amount of bread and cucumber
[tex]Bread = 2\ slices[/tex]
[tex]Cucumber = 5\ slices[/tex]
Express as ratio
[tex]Bread : Cucumber = 2 : 5[/tex]
When the ratio is multiplied by 5, the slice of cucumber (25) will exceed the available slices (20).
So, we multiply by 4
[tex]Bread : Cucumber = 2*4 : 5*4[/tex]
[tex]Bread : Cucumber = 8 : 20[/tex]
This implies that:
8 slices of bread and 20 slices of cucumber are used
Hence:
4 sandwiches can be made
3(x2)+ 5y
when X=4&y=3
Answer: if it’s 3(x^2)+5y then it will be 3(4^2)+5(3)= 63
Step-by-step explanation:
Give the range of the following data set: 4, 5, 8, 18, 21, 43, 82 *
88
86
78
Option76 4
Answer:
78
Step-by-step explanation:
The range is the difference between the highest and lowest number:
4, 5, 8, 18, 21, 43, 82
The highest number is 82 and the lowest is 4
82 - 4 = 78
The range is 78
10.6 - 3x when x is equal to 4.5.
Answer:
The answer is 2.6
Hope this Helps!!!
justin has x nickels and y dimes. He has a minimum of 15 coins worth at most 1$ combined determine one possible soltuiion with a set of inequalities
Answer:
Justin has 10 nickels and 5 dimes.
Step-by-step explanation:
Given that Justin has x nickels and y dimes, and he has a minimum of 15 coins worth at most $ 1 combined, to determine one possible solution the following calculation must be performed:
Nickel = 0.05
Dime = 0.10
15 x 0.05 + 0 x 0.1 = 0.75
14 x 0.05 + 1 x 0.1 = 0.80
13 x 0.05 + 2 x 0.1 = 0.85
12 x 0.05 + 3 x 0.1 = 0.90
11 x 0.05 + 4 x 0.1 = 0.95
10 x 0.05 + 5 x 0.1 = 1
So, Justin has 10 nickels and 5 dimes.
Which is the ordered pair that represents a point whose x-coordinate is the opposite of its y-coordinate and is located in Quadrant II?
(-1, 1)
(-1, 1)
(-2, -2)
(-2, -2)
(3, 3)
(3, 3)
(4, -4)
(4, -4)
Answer:
(-1, 1)
Step-by-step explanation:
-1 is the opposite of 1, and the point is located in quadrant ll.
Someone help with this I’m gonna fail !
Ayden earned a grade of 89% on his multiple choice history final that had a total of
200 problems. How many problems on the final exam did Ayden answer correctly?
Answer:
178
Step-by-step explanation:
Method 1: Set up a proportion
Set up an equation of the form:
\frac{\color{red}{\text{part}}}{\color{orange}{\text{whole}}}=
whole
part
=
\,\,\frac{\color{blue}{\text{percent}}}{100}
100
percent
Assign the variable xx to the unknown value:
\color{red}{x}=
x=
\,\,\color{red}{\text{part}}
part
The question asks what \textit{part}part of the total questions is 89%
Substitute the known values with the numbers given in the problem, and the unknown value with xx:
\frac{\color{red}{x}}{\color{orange}{200}}=
200
x
=
\,\,\frac{\color{blue}{89}}{100}
100
89
Solve for xx:
100\cdot\color{red}{x}=
100⋅x=
\,\,\color{orange}{200}\cdot\color{blue}{89}
200⋅89
Cross multiply
\frac{100x}{100}=
100
100x
=
\,\,\frac{17800}{100}
100
17800
Divide both sides by 100
178
Simplify
Method 2: Convert to decimal and multiply
{89}{100}=0.89
89%=
100
89
=0.89
Move decimal 2 places to the left
{Multiply result by the total:}
Multiply result by the total:
0.89{200}=
0.89⋅200=
178
number
percent
178
89%
200
100%
Answer:
178
Step-by-step explanation:
just trust meee
Recall from Exercise 1-16 the experiment that investigated the effectiveness of a nicotine lozenge for subjects who wanted to quit smoking (Shiffman et al., 2002). Before the treatments began, subjects answered background questions, including how many cigarettes they smoked per day. Among the 1818 subjects in the study, the average was 22.0 cigarettes per day, and the standard deviation was 10.8 cigarettes per day. a. Identify the population and parameter of interest.
Solution :
The population of the interest is : All smokers
The parameters of the interest is : population mean number of the cigarettes per day.
Population of interest :
The population interest is defined as the group or the population form the sample from which the experimenter or the researcher draws results or the conclusion of the experiment.
In the context, the researcher wants to draw the results from all the smokers in the study, so the population of interest is the smokers.
Parameter of interest :
The parameters of interest is the set of all unknown numbers which describes the population from which the researcher wishes to test with the estimator.
In the context, the interest parameter is the mean or the average population number of the cigarettes per day.
Select the correct answer.
Which scatter plot shows a positive linear association?
Answer:
what ever plot goes upwards is the positive one
Step-by-step explanation:
Answer:
D is the awnser :)
Step-by-step explanation:
Every mark is increasing...
1/3 or 1/6 which is not an equivalent fraction for the amount of pie
Answer:
1/6
Step-by-step explanation:
depends on how many people your giving it to to have an equal amount but i would say 1/6 because you can give 1/2 to 3 people.
THIS IS ONLY WHAT I THINK! WAIT FO RMORE RESPONSES IF NEEDED! THANK YOU.
what does t eaqual -6t - 7 = 17
Answer:
t = - 4
Step-by-step explanation:
-6t - 7 = 17
+7 +7
-6t = 24
/-6 /-6
t = - 4
Lois loans her sister Emily $2,000 with a simple interest rate of 1.5%. How much money will Lois make in interest if it takes Emily 3.5 years to pay her back
Answer:3261.91
Step-by-step explanation: y=2000(1+.15)3.5
PLEASE HELP!!!!
What is the area of this trapezoid enter your answer in the box ?
Help I’ve been stuck on these questions
Answer:
3+4x
7-12
2x+14=18
four times a number
four times a number is added to seven
Step-by-step explanation:
Point W has the coordinates (−19,−25)
. In which quadrant is W located?
A
Quadrant I
B
Quadrant II
C
Quadrant III
D
Quadrant IV
PLEASE ANSWER!
Draw a right triangle with side lengths of 3, 4, and 5 units.
Sides of the triangle = 3, 4, 5
Here, one thing to remember is, you have to put 5 as the "Hypotenuse" (Longest side) & smaller one's as Base & Perpendicular.
Hope this helps!
the value of square root of 4/49
Answer:The square root of 4 is 2 . The square root of 49 is 7 .Apr 19, 2015
Step-by-step explanation:
HURRY PLEASE
Simplify: 12k - 6 + (3k)(4)
PLS HELP ME ASAP my brother needs help what is 25 + 1/3 =
Answer:
76/3
(Decimal: 25.333333)
Step-by-step explanation:
Answer: 25.3
Step-by-step explanation:
You take 1/3=0.3
Then you add 0.3+25=25.3