A school principal is trying to decide how long the breaks should be between periods. He plans to time how long it takes several students to get from one classroom to another. Name a tool he could use to collect the data. ​

Answer:

median

Step-by-step explanation:

median is the number appearing at the centre or middle after the given numbers.mean is average. mode is the number that appears more times than the others. hope it helps

Answer:

MEDIAN!!! Is the answer

Step-by-step explanation:

Hope it helps ya! :D

Answer:

3/-2

Step-by-step explanation:

The negative sign applies for the whole fraction

Answer:

I believe its the second one. If I'm wrong, could someone correct me, Thank You.

Answer:

$3.51

Step-by-step explanation:

1 pound = $1.35

Ratios:

[tex]\frac{1}{1.35} =\frac{2.6}{x} \\\\x=3.51[/tex]

Answer: 3.51

Step-by-step explanation: Multiply 1.35 by 2.6 and you will get 3.51.

This is because each pound is 1.35 but we want to know how much is 2 pounds and .6.

Option c. is the correct answer.

Answer:1.36%

Step-by-step explanation:

I just took the exam and my answer was correct.

what grade u in ?! i will help u

Billy purchased 9 types of one type and 16 types of another spinner.

One or many equations having the same number of unknowns that can be solved simultaneously called as simultaneous equation. And simultaneous equation is the system of equation.

Given:

Billy bought 25 spinners.

Let x and y are the type of spinners.

Then, x + y = 25  {equation 1}

Some were $10 and some were $15.

10x + 15y = 295  

Simplifying,

2x + 3y = 59    {equation 2}

Multiplying 2 to the equation 1 and subtraction the equation 2,

-y = -9

y = 9

And x = 16

Therefore, each type of spinner is 9 and 16.

To learn more about the system of equation;

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Answer:

3000

Step-by-step explanation:

[tex]\frac{870}{x} =\frac{29}{100} \\\\29x=87000\\x=3000[/tex]

Double check:

29% = 0.29

3000(0.29) = 870

So 29% of the 3000 freshmen students taking economic majors are 870 students.

Answer:

16n^2+40n+25

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

according to my calendar your answer is indeed correctly false

Answer K= 20/x

Step-by-step explanation:

The value of k in the given linear equation is 20.

A linear equation is an equation where the variable (or variables) has the highest power of one.

Given,

310 - (30 × 7)=5 × k

⇒ 310 - 210 = 5k

⇒ 5k = 100

⇒ k = 100/5 = 20

Learn more about linear equation here: https://brainly.com/question/21835898

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Answer:

1305 in expanded notation form =

1000

+300

+5

:")

Answer:

[tex]infinitely \: many \: solution[/tex]

Step-by-step explanation:

simplify 2 - 10 to -8.

[tex] - 8 \leqslant 22[/tex]

Since -8 ≤ 22 is always true, there are infinitely many solutions.

hence, there are infinitely many solutions for this equation.

Answer:

4.68

Step-by-step explanation:

D=4h large, 1/2h cost

D= 1/2*9.35=cost

D= 1/2*9.35=4.68

Answer:

a) r = √V/6π

b) r = 8 inches

Step-by-step explanation:

a) The volume V​ (in cubic feet) of a right cylinder with a height of 6 feet and radius r (in feet) is given by V=6πr2​ . Solve the formula for r​ .

Solving for r means making r the subject of the formula

= V=6πr²

Divide both side by 6π

V/6π = 6πr²/6π

r² = V/6π

r = √V/6π

b) Then find the radius of the cylinder when the volume is 1206 cubic feet. Round your answer to the whole number.

r = √V/6π

V = 1206 ft³

r = √1206/6π

r = √(63.98028712294193)

r = 7.9987678503 inches

Approximately r = 8 inches

Answer:

The mistake that Andy made was on step 2 when he multiplied only the variables by 12.

Step-by-step explanation:

When you're solving an equation and are multiplying one side by a number, you need to multiply the other side by that number as well to keep the equation true. Since Andy multiplied only the variables and not the constants on each side of the equation, that means the equation would no longer be valid, and solving it would provide a wrong answer.

Answer:

person above me is right. that's is the answer.

Answer:

I love Math anyways  

the ans is in the picture with the steps  

(hope it helps can i plz have brainlist :D hehe)

Step-by-step explanation:

Answer:

7.71

Step-by-step explanation:

add it up

Answer:

tan R = 45/28 where ∡R=58.11° and tan S = 28/45 where ∡S=38.48°

Step-by-step explanation:

The tangent of a right triangle's angle is equal to the ratio between the triangle's opposite side to its adjacent side.

tan R = 45/28

R = tan^-1(45/28)

R = 58.11°

tan S = 28/45

S = tan^-1(28/45)

S = 38.48°

Answer:

5.01 x 10^-2

Step-by-step explanation:

Move the decimal two times to the right so it becomes 5.01 and since you moved the decimal to the right the exponent will be negative.

Answer:

x=20

Step-by-step explanation:

2x+34= -26+5x

-2x              -2x

34=-26+3x

+26     +26

60=3x

(divide by 3)

20=x

Answer:

13/18 which is 72.22% chance of NOT getting a red sock

Step-by-step explanation:

As there are 18 total socks, and 13 of them are NOT red, you have a 13 out of 18 chance, or 13/18, or NOT drawing a red sock. This can be converted to the decimal, 0.7222, or percentage of 0.7222 * 100 = 72.22%

Answer:

b?

Step-by-step explanation:

Answer:

256 is the right ama as 4/5*320 is 256

Answer:

216 in2

Step-by-step explanation:

the area of the rectangle is

20(12)=240

area of the triangle is

4(6)= 24

so now we subtract, 240-24= 216 in2

Answer:

228

Step-by-step explanation:

12x8=96 (times 2= 192)

20-(8+8 or 16)=4

4x12=48

------------------------------

6x4=24 (divided by 2 because it is a triangle=12)

48-12=36

------------------------------

192+36=228

Answer:

A- 0.68

Step-by-step explanation:

0.58 is most likely to be the population parameter, since the sample proportions center around this value.

Option B is the correct answer.

We have,

When many large samples are taken from a population, the sample proportions should converge to the population proportion.

If the sample proportions center around a certain value, that value is likely to be a good estimate of the population proportion.

In this case,

Since the sample proportions center around 0.58, it is likely that the population proportion is also around 0.58.

Therefore,

0.58 is the most likely population parameter.

Learn more about population parameters here:

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Answer:

First Column top:

5. 3. 10

Second Column middle:

9. 7. 2

Third Column bottom:

4. 8. 6

Hence, the grid would be,

5. 3. 10

9. 7. 2

4. 8. 6

Answer:

[tex]the \: second \: equation[/tex]

Answer:

follow the drawings or u can use that (ayp +xnc

...) both same

Step-by-step explanation:

well, there are 4× 1-9 meaning 36 cards

36/52

divide both sides by 4

9/13