Peyton is collecting data on the lunch habits of students at Hyattsville Middle School. In one class, 14 students bring lunch from home, and 20 buy a school lunch. Hyattsville Middle School has 1700 students. From the data collected, how many students would Peyton predict would buy a school lunch? *

Answers

Answer 1

Answer:

Answer: Around 1000 students would buy a school lunch.

Step-by-step explanation:

We know that in one class, 14 students bring lunch from home, and 20 buy lunch in the school. This will be our sample.

In total we have 20 + 14 = 34 students, this will be our 100%.

The percentage of students that bring lunch from home can be estimated as the quotient between the number of students that bring lunch from home and the total number of students, times 100%.

p1 = (14/34)*100% = 41.18%

And the percentage of students that buy lunch at school can be computed in the same way:

p2= (20/34)*100% = 58.82%

Then, out of the 1700 students in middle school, we can estimate that around 58.82% of them will buy lunch in the school.

Then the exact number will be:

N = (58.82%/100%)*1700 = 1000

Around 1000 students would buy a school lunch.


Related Questions

Does the system have a no solution or infinitely many solutions
Y=2/3x+2-2x+3y=6

Answers

Answer:

answer for y=2/3x+2: y=2/3x+2

answer for -2x+3y=6: x=3/2y-3

pls give brainliest

Answer:

There are infinitely many solutions.

Step-by-step explanation:

There are infinitely many solutions because if you solve the equations, you will find that both of the equations are actually the same, so there is infinitely many solutions.

Showing that both equations are equal:  y=2/3x+2       -2x+3y=6

y=2/3x+2  Multiply by 3 on both sides

3y=2x+6 Rearrange (-2x on both sides)

3y-2x=6 More rearrangement

-2x+3y=6 Now, if you look back at the second equation, you will see that they are both the same.

                     

Change each fraction or mixed number to a percent.
a.2/5
b.7/20
C. 1 11/16
d. 14 1/4

Answers

Answer:

a=40%, b=35%, c=168.75, d=1425

Step-by-step explanation:

a : 2/5=4/10*100=40

b:7/20=35/100*100=35

c: 1 11/16=1.6875*100=168.75

d: 14 1/4=14.25*100=1425

Please help!! I really need it.

Answers

It’s a I think but I’m not sure

Help me please for gods sake :(

Answers

Answer:

Step-by-step explanation:

15:60

your ratio would be a 1:4

15  18  21  27

60  72  84  108

Answer:1560

Step-by-step explanation: i just copied the other guy

Selection all equations that are true given the diagram below.

Answers

Answer:

Opition A I just did it

Step-by-step explanation:

I LIKE YA CUT G

Your sister can get $30 per day, d, for selling clothes at the market. But she has to pay $60 at first for renting a stand. You can get $20 per day for helping your neighbor rake lawns. After how many days will your sister earn as much as you?

Answers

Answer:

6 days

Step-by-step explanation:

pay 60 = -60

Let d = the number of days

30d - 60 = sister

20d = me

Equation:

30d - 60 = 20d                    Move 30 to the other side

-30d          -30d

-60 = 20d - 30d                    Combine liked terms

-60 = -10d                                

-10     -10                                Divide

d = 6

please help this is due at 12:20

Answers

Answer:

B

Step-by-step explanation:

The answer is b hopefully you’ve completed it before 12:20

Please help
Will give brainliest!!!

Answers

step 1: set equations equal to eachother
2x+2=x-1
which equals to x=-3
so the answer is one.

Answer:

There is one solution.

Step-by-step explanation:

y=2x+2

y=x-1

So 2x+2 = x-1

x = -3

So y = -4

At a basketball game, 3 out of every 10 people who enter the gym will be wearing hats. If 250 people attend the game, about how many of them will probably be wearing hats?

75 people

80 people

65 people

70 people

Answers

Its 75 honestly how i did it was just 25x10 then 3x25 which is 75

what would be the measure of angle A?
A. 70 degrees
B. 79 degrees
C. 55 degrees
D. 44 degrees

Answers

Answer:

D because that is the smallest angle on there baby doll

Step-by-step explanation:

have a nice day sugar bear

Answer:

D

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 angles and equate to 180

4x + 8x - 9 + 57 = 180, that is

12x + 48 = 180 ( subtract 48 from both sides )

12x = 132 ( divide both sides by 12 )

x = 11

Thus

∠ A = 4x = 4 × 11 = 44° → D

Is 0z=2 no solution?

Answers

Answer:

No

Step-by-step explanation:

If a polynomial function f(x) has roots –8, 1, and 6i, what must also be a root of f(x)? –6 –6i 6 – i 6

Answers

Answer: -6i

Step-by-step explanation:

PLEASE HELP ME ON NUMBER 5

Answers

Answer:

Hebrew National since the cost is only 0.73

Step-by-step explanation:

First we need to identify the cost of each hotdog for each brand. I'll go by in order.

Ball Park:

We know that it cost $6.95 and it's 8 dogs for each one. Meaning all we have to do is divide the price by the amount of hot dogs.

"Price/Hotdogs per package"

In order

6.95/8=0.86875 or 0.87

8.20/10=0.82

7.35/8=0.91875 or 0.92

17.50/24=0.7291666 or 0.73

Since we're dealing with currency we would most likely round it by the nearest hundredth so the true answer would be $0.87.

Use this formula that I made for this question for any other questions.

6/7 divided (-13/5) = ??

Answers

Answer:

- 30/91

Step-by-step explanation:

Determine the correct scientific notation form of the number. 627,000,000

Answers

Answer:

6.27 x 10 ^ 8

Step-by-step explanation:

What is the sum of 52.07 and 8.43?

(Write the answer as a decimal to the nearest tenth.)

Answers

60.5, rounded to the nearest tenth should be 61!!

The sum of 52.07 and 8.43 which is 52.07 + 8.43 will be 60.50.

What is Algebra?

The analysis of mathematical representations is algebra, and the handling of those symbols is logic.

PEMDAS rule means for the Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This rule is used to solve the equation in a proper and correct manner.

The numbers are given below.

52.07 and 8.43

Then the sum of the numbers 52.07 and 8.43 will be given by putting a plus sign between them. Then we have

⇒ 52.07 + 8.43

⇒ 60.50


The value of the expression 52.07 + 8.43 will be 60.50.

More about the Algebra link is given below.

https://brainly.com/question/953809

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Hey sorry to bother but i need this done as fast as possible. "Solve the system without graphing. Explain in steps. 3x=8+y, 4x-3y=1

Answers

Isolate y
3x-8= y
Let x = 0
3(0)-8 = y
y= -8

Isolate x
4x-3y=1
4x=1+3y
Let y= 0
4x = 1+ 3(0)
4x= 1
Divide both sides by 4
x= 1/4

Pls I need help !!!!!

Answers

It is the same as the one below it so the answer is 136°

Answer: 136°

What is 4.3% as a decimal

Answers

0.043 is the correct answer :$

Answer:

0.043

Step-by-step explanation:

Divide by 100.

4.3 / 100 = 0.043

Best of Luck!

Please answer quickly

Which of the following could be the number shown on the number line?

Answers

Answer:

A

Step-by-step explanation:

6 is the square root of 36 since it is to the left of it it should be less than 36. That leaves 35 and 30. 35 is closer to 6 as it is almost there so the answer is[tex]\sqrt35[/tex]

I think it is B.35 but I’m not entirely sure.

The rate at which crickets chirp is a linear function of
temperature. At 60°F they chirp 74 times per minute.
At 72º they chirp 120 times per minute.
a.) Write an equation in slope intercept form that
represents this function.
b.)Predict the number of chirps per minute when the
temperature is 64º.

Answers

Answer:

a) [tex]y=\frac{23}{6} x-156[/tex]

b) [tex]\frac{268}{3}[/tex]

Step-by-step explanation:

Formulas for linear equations:

Slope-intercept: [tex]y=mx+b[/tex], where m is the slope and b is the y-intercept

Point-slope: [tex]y-y_1=m(x-x_1)[/tex], where (x₁, y₁) is a point on the function and m is the slope.

a) We are given two points. If you're given two points (x₁, y₁) and (x₂, y₂), the slope m is given by the formula:

[tex]m = \frac{y_2-y_1}{x_2-x_1}[/tex]

Let's mark the temperature on the x-axis, and the number of chirps per minute on the y-axis. So, we have the following points: (60, 74), and (72, 120). Calculating the slope m between these two points:

[tex]m=\frac{120-74}{72-60}[/tex]

[tex]m=\frac{23}{6}[/tex]

Since we have the x and y coordinates of a point on the function, we can write an equation in point-slope form, which will help us to find the y-intercept. We need the y-intercept in order to write the slope intercept form of the equation. We will use the point (60, 74) here, although you can also use (72, 120) if you want.

Point-slope form equation of the linear function:

[tex]y-74=\frac{23}{6} (x-60)[/tex]

Now that we have the point-slope equation of the function, we can find the y-intercept. The y-intercept is the point on the function where the graph crosses the y-axis (when the x-value is 0). So, we plug in 0 for x into the equation and solve for y:

[tex]y-74=\frac{23}{6} (0-60)[/tex]

[tex]y=-230+74[/tex]

[tex]y=-156[/tex]

Now that we have the y-intercept value of the function, we can write an equation in slope-intercept form:

[tex]y=\frac{23}{6} x-156[/tex]

b) Since we marked the temperature on the x-axis, we can just plug in the number 64 as the x-value into the equation we have. y will be the number of chirps per minute when the temperature is 64º.

[tex]y=(\frac{23}{6} *64)-156[/tex]

[tex]y=\frac{736}{3} - \frac{468}{3}[/tex]

[tex]y=\frac{268}{3}[/tex]

If you have any questions, leave a comment below.

Please help for brainlest.

Answers

Answer:

3

Step-by-step explanation:

Answer: x=3

Step-by-step explanation:

I just know -.-

What is -3+7 please help

Answers

Answer:

It is 4.

Thank you and please rate me as brainliest as it will help me to level up

Jonathan wants to investigate the effect that friction has on the amount of force needed to pull an object over surfaces with different textures.
For his test, he gathers the following materials:
• A 1-kilogram wooden board
• A1-meter length of string
A spring scale
• 1 sheet each of felt, construction paper, coarse sandpaper, and wax paper
• 1 roll of masking tape
Jonathan ties one end of the string around the board and the other end to the hook of the spring scale. He tapes the felt, construction paper,
sandpaper, and wax paper side by side on a tabletop. Then he slowly pulls the board across each of the four different surfaces, one surface at
a time. He records the amount of force it takes to move the board over each surface. Which surface would require the least force to move the
board?
O A. Coarse sandpaper
O B. Construction paper
OC. Felt
O D. Wax paper

Answers

Answer:

sand paer

Step-by-step explanation:

dd,,dd,

ddmdmdmdmmddmmdddmdmmdmdmd

0.2 - 4/10 - 1.625 =
Enter the answer as an exact decimal or simplified fraction.

Answers

Answer:

-33/40

Step-by-step explanation:

Answer:

-1.825 or in fraction form -73/40 or -1 33/40

Please help geometry honors

Answers

sjdisisiwiwwisidisshddjdj

Is triangle mno similar to triangle pqo explain

Answers

Answer:

need more information or a picture please

Step-by-step explanation:

8/34=?
can you show the work pls and thank you

Answers

The answer is 4/17 the work is below

Help pleasseeeeeeeeeeeeeeeeeeer

Answers

Answer:

4

Step-by-step explanation:

8/12 simplifies to 4/6. so x needs to be 4 for it to work

The product of 15 and a number X is -75. Write the equation, and solution for X.

Answers

Answer: [tex]x = -5[/tex]

Step-by-step explanation:

If a product of 15 and an unknown number equals -75 the equation should look like this:

[tex]15x = -75[/tex]

Now to solve for x:

1. [tex]\frac{15x}{15} = \frac{-75}{15}[/tex]

2. [tex]x = -5[/tex]

The solution for x is -5.

What is Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side. It demonstrates the equality of the relationship between the expressions printed on the left and right sides. LHS = RHS is a common mathematical formula.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation. Equal treatment should be given to each party.

Given:

The product of 15 and a number X is -75.

So, the expression is

15x = -75

Now, divide 15 on both side

15x/15= -75/15

x= -5

Hence, the value of x is -5.

Learn more about equation here:

https://brainly.com/question/10413253

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