Helppppppppp

In a recent year, there were 15,900,000 high school
students in the United States. Suppose 250,000 of a
random sample of 500,000 high school students
during that year played on a sports team. Estimate
the total number of U.S. High school students that
played on a sports team that year.

Answers

Answer 1

Answer:

The total number of U.S. high school students that played on a sports team that year can be estimated to be 7,950,000.

Step-by-step explanation:

From the random sample, we can expect that [tex]\frac{250000}{500000}=\frac{1}{2}[/tex] of all students played on a sports team that year. So in the bigger sample of 15900000 high school students, we can expect [tex]15900000 \cdot \frac{1}{2} = 7950000[/tex] students to have played on a sports team that year.


Related Questions

Find the slope of the line passing through the points (7, 8) and (7,-9).

Answers

Answer:

the slope is undefined

Step-by-step explanation:

[tex]m = \frac{-9 - 8}{7-7} \\m = \frac{-17}{0 }\\m = DNE[/tex]

Geometry/proportions
Solve for x.

Answers

Answer: x=19

Step-by-step explanation:

a triangle always=60 so

14+12+15=41

41-60

=19

Answer:

x=19 makanya belajar jangan maen game gitu aja susah amat

You earn $56 for washing 8 cars. How much do you earn for washing 3 cars?

Answers

Answer:

$21

Step-by-step explanation:

I need help i don't understand ​

Answers

Answer:

50%

Step-by-step explanation:

50% aaaaaa.................

this year Benny is 12 years old and his mom is 48 years old what percent of his mom's age is Benny's age ​

Answers

Answer:

25%

Step-by-step explanation:

Let's set up a percent proportion:

12/x = 48/100

To solve for x, we would do:

x = (12*100)/48 = 1200/48 = 25

x = 25%

In my opinion, the easiest way to do this would be to look at this and notice that 12 * 4 =48 so that means 12 is 1/4 of 48 and 1/4 = 25%.

Let me know if you have any questions.

How would you define slope?

Answers

Answer:

In mathematics, the slope or gradient of a line is a number that describes both the direction and the steepness of the line. ... Slope is calculated by finding the ratio of the "vertical change" to the "horizontal change" between (any) two distinct points on a line.

An angle measures 160° less than the measure of its supplementary angle. What is the measure of each angle?

Answers

Answer:

The two angles are 10 degrees and 170 degrees.

Step-by-step explanation:

Supplementary angles add up to 180 degrees.

Let the angle be called "x", and the supplementary angle be called "180-x"

Converting words to math: x-160=180-x

Add x to both sides: 2x-160=180

Simplify: 2x=20

Divide by 2: x=10

Let me know if this helps!

. Rewrite the expression by using the Distributive Property: 8(5x - 4) *

Answers

Answer:

40x-32

Step-by-step explanation:

First, you multiply 8 time 5x which equals 40x. Next, you multiply 8 times 4 which equals 32, so it is 40x-32

Rewrite with positive exponents: 7^-3

Answers

Answer:

1/7^3 (One over seven thirds)

Step-by-step explanation:

Need help what’s the irrational number?

Answers

Answer:

B. √6

Step-by-step explanation:

Irrational number is a number that cannot be expressed in a form of fraction

2.5 = 5/2

√6 = 2.49...

1/2 = 1/2

√9 = 3/1

At a sale, coats were sold for 52% of their original price. If the coats originally cost
$200 each, how much did a coat cost on sale?
Help me please

Answers

Answer:

Answer is 104

Step-by-step explanation:

The selling price of the coat is $104.

What is a percentage?

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

Original price = $200

Selling price.

= 52% of $200

= 52/100 x 200

= $104

Thus,

$104 is the selling price of the coat.

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-) Select all ordered pairs that satisfy the function y = 5x + 3.
A.
(-3, -37)
B.
(-5, -22)
C.
(-8, -37)
D.
(-5, -12)

Answers

The answers that would work are B and C

jeffys law whats 2+2

Answers

Answer:

b

Step-by-step explanation:

Step 3: Equations and Inequalities Unit Test
6. Solve for j.
j - 18 = 43

Answers

j=61. you would do 18+43!

Answer:

j = 61

Step-by-step explanation:

j - 18 = 61

Step One: Add your addend and your total together.

18 + 43 = 61

Step Two/Check: Subtract your original total with one of your original addend to get the second original addend you had before.

61 - 18 = 43

Answer:

j = 61

PLEASE HELP, pictures with for it, and you us waste it ill report you

Answers

Answer:

it is C the 4

Step-by-step explanation:

-6 to pos 4

What is the ratio of a:b, knowing that a-b / a+b = 3/5

Answers

Answer

i am going to give you 2 answer

1. solving for A is:  A=3/5 -b

2. solving for B is:  B=3/5 -a

Step-by-step explanation:

correct me if I'm wrong

let me know if it's correct or not

Answer:

soo what is the answer

Step-by-step explanation:

Identify the relationship in each figure according to the following descriptions

Answers

Answer:

yes

Step-by-step explanation:

la verdad no te entiendo nose porque me salen las preguntas en inglés HAHA perdón:(

complementary, adjacent, supplementary, complementary

What is the equation of the line shown below?

A. Y=(4/5)x-1
B. Y=-(4/5)x-1
C. Y=(5/4)x-1
D. Y=-(5/4)x-1

Answers

Answer:

B

Step-by-step explanation:0

The negative in front of the -(4/5), means you have to move four spaces back but move five up

hopes this helps~

Is y=-3/4x + 8 linear?

Answers

Answer:

Yes

Step-by-step explanation:

Answer:

yes it is

Step-by-step explanation:

What is the greatest common factor of 42 and 15?

Answers

Answer:

3

Step-by-step explanation:

Answer:

Step-by-step explanation:

3

Sunita creates a scale model of an aeroplane. The scale of the model is 4 cm to 15 m. Sunita's model has a wingspan of 17 cm. What is the wingspan of the real aeroplane?

Answers

Answer:

36.43m

Step-by-step explanation:

Let the wingspan of the real aeroplane = x

The scale of the model is 4 cm to 15 m.

= 4: 15 = 4/15.

Sunita's model has a wingspan of 17cm.

Hence:

4cm/15m = 17cm/xm

Cross Multiply

4x = 15 × 17

4x = 255

x = 255/4

x = 36.428571429 m

Approximately = 36.43 m

Therefore, the wingspan of the real aeroplane is 36.43m

7,525 ÷ 35 what is the value of the expression ​

Answers

Answer:

215

Step-by-step explanation:

4,236 + 489 + 23 = N
N = ?

Answers

The answer is N=4,748

29
2
Solve the inequality
- +3>
W
a.
c.
W <3 or w > 6
w <3 or w > 9
W <0 or w > 6
W <0 or w > 9
b.
d.

Answers

Step-by-step explanation:

Let's solve your inequality step-by-step.

2

w

+3>

29

w

3w+2

w

>

29

w

Let's find the critical points of the inequality.

3w+2

w

=

29

w

3w+2=29(Multiply both sides by w)

3w2+2w=29w(Multiply both sides by w)

3w2+2w−29w=29w−29w(Subtract 29w from both sides)3w2−27w=0

3w(w−9)=0(Factor left side of equation)

3w=0 or w−9=0(Set factors equal to 0)

w=0 or w=9

Check possible critical points.

w=0(Doesn't work in original equation)

w=9(Works in original equation)Answer:

w<0 or w>9

Help I will make you as brainlist please

Answers

Answer: C

Step-by-step i just know

c
i added and multiplied them all

John rode 2 kilometers on his bike. His sister Sally rode 6,000 meters on her bike. How many more kilometers did Sally ride?

Answers

Answer:

I don't understand, please write again

Answer:

Sally rode 4 kilometers more than her brother.

Step-by-step explanation:

1,000 meters = 1 kilometer

So if you convert Sally's meters into kilometers, you get 6 kilometers. John rode 2 kilometers so you do 6 kilometers - 2 kilometers = 4 kilometers.

Now you got your answer!

Hope this helped.

Ethan uses the function f(x) = 2x2 + 2x + 4 to track the temperature of a substance over 8 hours. You know that f(3) = 28 meaning that the temperature of the substance is 28°C when you plug in a 3 for x. What is the domain of Ethan’s function?

Answers

The domain of the function f(x) = 2x² + 2x + 4  is (-∞, ∞).

What is Quadratic equation?

The polynomial equation whose highest degree is two is called a quadratic equation or sometimes just quadratics. It is expressed in the form of:

ax² + bx + c = 0

where x is the unknown variable and a, b and c are the constant terms.

You have the quadratic function

f(x) = 2x² + 2x + 4 ,

and remember that all quadratic functions are parabolas opening at point called the vertex.

Since you can plug any real number in our parabola here, its domain is all the real numbers, and this is true for all the quadratic functions of the form ax² + bx + c = 0.

Thus, in interval notation the domain of the function  is (-∞, ∞).

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Pleaseeeee I’ll mark u brainleast

Answers

Answer:

1: x = 10

2: x = 2

3: x = 5

4: x = -5

Step-by-step explanation:

1. first one is g
2. c
3. a
4. h

10. How long did it take for Krista's family to drive the 110 mi, to the cabin in the mountains if they were
able to average only 40 mph?

Answers

Answer:

2.75 hours

im pretty sure

Step-by-step explanation:

Alexa has a points card for a movie theater. She receives 25 rewards points just for signing up. She earns 4.5 points for each visit to the movie theater. She needs 61 points for a free movie ticket. How many visits must Alexa make to earn a free movie ticket?

Answers

Answer:

8

Step-by-step explanation:

25+ (4.5 x 8)

25+ 36

=61.

She needs 8 visits

Answer:

8

Step-by-step explanation:

61 - 25 = 36

36 divided by 4.5 = 8

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