Answer:
35 are boys and other are girl
Answer: 35 boys
Step-by-step explanation:
So we know the ratio of girls to boys for every 10 student is 3 girls to 7 boys from there we can multiply each number by 5 to give us a total of 50 students which would be 15 girls to 35 boys.
A set of buttons sells for $2.75 and costs $0.55 to make. Twenty percent of the profit (the difference between the purchase price and the amount it costs to make) from each set of pencils goes to RMS. If 500 sets are sold, what is the amount of money that will go to the school? i will give brainlyest A
$195.00
B
$220.00
C
$275.00
D
$310.00
Answer: b
Step-by-step explanation: I am 95% sure
Hey guys can you please help me with this math problem?
Answer:
77777777
Step-by-step explanation:
Answer:
A
Step-by-step explanation:
its a because it has a greater base value
Write a slope intercept equation for this situation.
A computer technician charges $60 to come to your house and $18 for each hour he works.
Answer:
y = 18x + 60
Step-by-step explanation:
The slope intercept equation is:
y = mx + b
For this problem:
y will represent the total cost of the technician
m will represent cost per hour
x will represent number of hours
b will represent the initial cost
With this in mind, we can plug these into our equation
y = 18x + 60
Answer:
in slope intercept this would look like y = 18x + 60
Pls help I will give brainiest answer.
Answer:
1) D
2) A
Step-by-step explanation:
HELP ME PLEASE NOBODY IS ACTUALLY HELPING THIS OS SO HARD AND IM STUCK 7TH GRADE MATH
WNBA Mean:__________
WNBA Mean Absolute Deviation:_________________
NBA Mean:___________________
NBA Mean Absolute Deviation:_______________________
The variability in heights is only different by _____________ inches.
Answer:
1. 72 [tex]\frac{5}{11}[/tex]
3. 79 [tex]\frac{5}{6}[/tex]
Step-by-step explanation:
The mean is found by dividing the sum of the inputs by the total number of inputs.
Answer:
enjoy your day hope the answer comes to you
Step-by-step explanation:
Determine the slope intercept form of the linear equation from its graph.
Given:
The graph of linear function.
To find:
The slope intercept form of the linear equation from the given graph.
Solution:
The slope intercept form of a linear function is:
[tex]y=mx+b[/tex]
From the given graph it is clear that the graph passes through the points (1,300) and (4,800).
The equation of line is
[tex]y-y_1=\dfrac{y_2-y_1}{x_2-x_1}(x-x_1)[/tex]
[tex]y-300=\dfrac{800-300}{4-1}(x-1)[/tex]
[tex]y-300=\dfrac{500}{3}(x-1)[/tex]
[tex]y-300=\dfrac{500}{3}x-\dfrac{500}{3}[/tex]
Adding 300 on both sides, we get
[tex]y=\dfrac{500}{3}x-\dfrac{500}{3}+300[/tex]
[tex]y=\dfrac{500}{3}x+\dfrac{900-500}{3}[/tex]
[tex]y=\dfrac{500}{3}x+\dfrac{400}{3}[/tex]
Therefore, the required equation is [tex]y=\dfrac{500}{3}x+\dfrac{400}{3}[/tex].
ahhhh I need this explained 2
Answer:
Step-by-step explanation:
[tex]a_{n}=-2*5^{n-1}\\n=11\\a_{11}=-2*5^{11-1}\\a^{11}=-2*5^{10}\\=-2*50,000,000,000\\=-100,000,000,000[/tex]
An item originally costs $175.00. The item is now on sale for 99.75. What percent is the sale price for the original price? Is this an example of percent increase or decrease? Explain how you know?
Answer:
Discount percent = 43% off
Discount amount (money saved) = $75.25
Step-by-step explanation:
To find the discount percentage:
List price ($175) minus the sale price ($99.75) then divided by the list price ($175) and multiplied by 100 to get the discount percent of 43%.
To find how much money was saved:
List price ($175) minus sale price ($99.75) to get the amount saved, which savings are $75.25 in this case.
I hope this helps :)
pick correct graph from multiple choice options. A.B.C.D PLEASE
Answer:
i think it would be going to C because you dont have what x would be so we could assume that it is 0 and y intersection would be 2
Step-by-step explanation:
Jacob designs a building with a square base. He starts by building a model for the building, which has a base with an
area of 36 feet?. The base of the real building will have an area of 6084 ft.?.
What is the scale factor between the model and the real building?
O 78
O 13
O 169
O 6
Answer:
Step-by-step explanation:
base of model is 6 ft by 6 ft
base of building is 78 ft by 78 ft
scale factor = 78÷6 = 13
Find the mean, variance, and standard deviation of the binomial distribution with the given values of n and p.
n = 80, p = 0.2
Answer:
mean =16
variance=12.8
standard deviation =3.578
Step-by-step explanation:
mean=np=80×0.2=16
variance= np(1-p)
=16(1-0.2)
=12.8
standard deviation =
[tex] \sqrt{12.8} [/tex]
=3.5777
=3.578
Doug rents a kayak for 12 days the rental charges 18 per day what is the best estimate for the total cost of the kayak rental
Answer:
200
Step-by-step explanation:
I rounded both numbers and multiplayer them.
Please solve the question below
Answer:
angle ERT = angle YUP
Step-by-step explanation:
I have this Work Sheet and I need help!
Hope it helps u mate....
4x (2x+1) simplify the equation
answer:
4x × 3x
explanation:
Answer:
8[tex]x^{2}[/tex]+4x
Step-by-step explanation:
Distribute 4x by 2x and by 1
Answer will be 8[tex]x^{2}[/tex]+4x
A color printer prints 10 pages in 4 minutes. How many minutes does it take per page?
Answer:
2/5 minute OR 24 seconds
Step-by-step explanation:
4/10 = 2/5 minute
Hope that helps!
a polygon has 10080° as the total interior angle how many sides has the polygon
The formula for the sum of the interior angles of a polygon is (n - 2) * 180. In this formula, N is the number of sides. So, to find the number of sides that a polygon with an interior angle measure of 10080 has, we'll set the formula equal to 10080.
10080 = (n - 2) * 180
Divide both sides by 180
56 = n - 2
Add 2 to both sides
n = 58
Hope this helps!! :)
Answer:
58 sides
Step-by-step explanation:
The sum of the interior angles of a polygon is 10,080°
n = the number of sides
(2n - 4)90 = 10080
2n - 4 = 10080/90 = 112
2n = 116
n = 58.
-4x+9y=9
3y-6=x
Solve the system of equations and fill in the blanks
X=
Y=
Step-by-step explanation:
the answer for x = 9
the answer for y = 5
Define the range of the following:
Answer:
{-2, 3, 4, 5}
General Formulas and Concepts:
Math
Number LineAlgebra I
Range is the set of y-values that are outputted by function f(x)Builder Set Notation {x}Step-by-step explanation:
According to our graph, our y-values are 3, 4, 5 and -2. Since they are all closed dots, they are inclusive in the range:
Remember to put it in number line order.
{-2, 3, 4, 5}
The temperature of a piece of metal was 32°C. It was then lowered into a glass of
hot water and the temperature of the piece of metal rose to 36°С. Find the
percentage increase in the temperature of the piece of metal.
Answer:
12.5%
Step-by-step explanation:
Given that,
Initial temperature of a piece of metal = 32°C
Final temperature of the piece of metal = 36°С
We need to find the percentage increase in the temperature of the piece of metal. The percentage increase in any value is given by the relation as follows :
[tex]\%=\dfrac{|\text{final value-initial value}|}{\text{initial value}}\times 100\\\\=\dfrac{36-32}{32}\times 100\\\\=12.5\%[/tex]
So, the required percentage increase in the temperature of the piece of metal is equal to 12.5%.
Match each equation on the left to the mathematical property it uses on the right
Answer:
attachment plz
Step-by-step explanation:
nothing is being seen
You deposit $3000 each year into an account earning 2% interest compounded annually. How much will you have in the account in 20 years?
Answer:
$72891.1094
Step-by-step explanation:
This method of saving is called sinking fund.
Future value (FV) = A*([tex]\frac{[(1+r)^{n} - 1]}{r}[/tex])
Where A is the amortization, r is the rate and n the number of years.
A = $3000
r = 2% = 0.02
n = 20
FV = 3000 * [tex](\frac{[(1.02)^{20} - 1]}{0.02})[/tex]
= 3000 * 24.2973698
= 72891.1094
FV = $ 72891.1094
The amount that would be in the account after 20 years is $72891.1094
help and listen to anime thighs by MC Virgan
Answer:
I am nottt listening to that i already know whay that is
Answer:
C broooo
Step-by-step explanation:
Which system has (3,0) as a solution?
- x + y =-1
3x – 2y = 5
3x + 2y = 9
x – 4y = 3
Option 1
Option 2
x+y = 3
x - y = 0
2x + y = 12
x – 2y =- 3
Option 3
Option 4
Answer:
x+y=3
Assuming that the option 1 and 2 dont mean anything
To charter a fishing boat for 3 hours the captain charges a base fee of 45.00 plus 15.00 per person using variables construct a function that models the total cost of a 3-hour charter in terms of the number of people in your function. Define any variables you use. What is the correct interpretation of the initial value snd the rate of change
Answer:
$90.00
Step-by-step explanation:
Given
[tex]c = 45.00[/tex]--- base fee
[tex]m = 15.00[/tex] --- rate
[tex]x = 3[/tex] --- individuals
Required
Determine the total amount paid (y)
The relationship between the variables is:
[tex]Total = Base\ Fee + Rate * Individuals[/tex]
[tex]y = c + mx[/tex]
This gives:
[tex]y = 45.00 + 15.00 * 3[/tex]
[tex]y = 45.00 + 45.00[/tex]
[tex]y = 90.00[/tex]
Hence, the amount is $90.00
About 5/7 of the earths surface is covered with water. About 88957440 km squared is land. How much in km squared of the earths surface is covered in water?
Answer:
71 percent
Step-by-step explanation:
About 71 percent of the Earth's surface is water-covered, and the oceans hold about 96.5 percent of all Earth's water. Water also exists in the air as water vapor, in rivers and lakes, in icecaps and glaciers, in the ground as soil moisture and in aquifers, and even in you and your dog. Water is never sitting still.
The area of the earth's surface covered in water will be 63541028.57 square kilometres.
What is an expression?Expression in maths is defined as the relation of numbers variables and functions by using mathematical signs like addition, subtraction, multiplication and division.
In mathematics, expression is defined as the relationship of numbers, variables, and functions using mathematical signs such as addition, subtraction, multiplication, and division.
Given that about 5/7 of the earth's surface is covered with water. About 88957440 km squared is land.
The area covered with water will be calculated as,
Area = ( 5 / 7 ) x 88957440
Area = 63541028.57 square kilometres.
To know more about an expression follow
https://brainly.com/question/28699958
#SPJ3
What is the difference between a savings and a checking account? HELPPP?!
1.A checking account creates interest.
2.A savings account creates Interest.
3.A savings account lets you take out as much money as you want as many times as you want.
4.Both accounts are the sam.
Answer:
3
Step-by-step explanation:
Shelby leaves her house at 9:00am on her bike at a speed of 320 meters per minute. At 10:30 am, her brother, Colby leaves the house on his bike and tries to catch up with Shelby. Colby rides at a speed of 500 meters per minute. At what time will Colby catch up with Shelby?
Answer:
Step-by-step explanation:
320t=500(t-1.5)
320t=500t-750
-180t=-750
t=25/6
t=4+1/6 hours
So Colby catches up 4 1/6 hours after Shelby left. Since she left at 9am
9+4hours + 10 minutes. So they have travelled the same distance at 1:10pm
Suppose the weights of Farmer Carl's potatoes are normally distributed with a mean of 8.0 ounces and a standard deviation of 1.1 ounces.
(a) If 5 potatoes are randomly selected, find the probability that the mean weight is less than 9.3 ounces? Round your answer to 4 decimal places.
(b) If 6 potatoes are randomly selected, find the probability that the mean weight is more than 9.0 ounces? Round your answer to 4 decimal places.
Answer:
a) 0.9959 = 99.59% probability that the mean weight is less than 9.3 ounces
b) 0.0129 = 1.29% probability that the mean weight is more than 9.0 ounces
Step-by-step explanation:
To solve this question, we need to understand the normal probability distribution and the central limit theorem.
Normal Probability Distribution:
Problems of normal distributions can be solved using the z-score formula.
In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the zscore of a measure X is given by:
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
Central Limit Theorem
The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean [tex]\mu[/tex] and standard deviation [tex]s = \frac{\sigma}{\sqrt{n}}[/tex].
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Mean of 8.0 ounces and a standard deviation of 1.1 ounces.
This means that [tex]\mu = 8, \sigma = 1.1[/tex]
(a) If 5 potatoes are randomly selected, find the probability that the mean weight is less than 9.3 ounces?
[tex]n = 5[/tex] means that [tex]s = \frac{1.1}{\sqrt{5}} = 0.4919[/tex]
This probability is the pvalue of Z when X = 9.3. So
[tex]Z = \frac{X - \mu}{\sigma}[/tex]
By the Central Limit Theorem
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{9.3 - 8}{0.4919}[/tex]
[tex]Z = 2.64[/tex]
[tex]Z = 2.64[/tex] has a pvalue of 0.9959
0.9959 = 99.59% probability that the mean weight is less than 9.3 ounces
(b) If 6 potatoes are randomly selected, find the probability that the mean weight is more than 9.0 ounces?
[tex]n = 6[/tex] means that [tex]s = \frac{1.1}{\sqrt{6}} = 0.4491[/tex]
This probability is 1 subtracted by the pvalue of Z when X = 9. So
[tex]Z = \frac{X - \mu}{s}[/tex]
[tex]Z = \frac{9 - 8}{0.4491}[/tex]
[tex]Z = 2.23[/tex]
[tex]Z = 2.23[/tex] has a pvalue of 0.9871
1 - 0.9871 = 0.0129
0.0129 = 1.29% probability that the mean weight is more than 9.0 ounces
to make one dozen muffins 3/4 cup of blueberries will be needed how many cups of blueberries ared needed to make 48 muffins
57/20 or 2.85 is the right answer