In a cross country meet, you run at a steady pace of 7 minutes a mile. If you finish the race in 21 minutes. How long is the race?

Answers

Answer 1

Answer: 3 miles:
21 divided by 7 is 3

Answer 2

Answer: You would change the word problem into an equation. So it would be 21/7. The answer is 3 minutes.

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Find the mean absolute deviation for the set below s equals 65 , 90, 85, 70, 70, 95, 55 a 12.24
b 75.7
c 85.7
d 40

Answers

75.7 I think that is the answer

Final answer:

To find the mean absolute deviation, calculate the absolute difference between each value and the mean, then find the average of those absolute differences.

Explanation:

To find the mean absolute deviation for the given set, follow these steps:

Calculate the mean of the set by adding up all the values and dividing by the total count.
Find the absolute difference between each value and the mean.
Add up all the absolute differences.
Divide the sum of absolute differences by the total count.

In this case, the mean of the set is (65+90+85+70+70+95+55)/7 = 74.29

The absolute differences between each value and the mean are: |65-74.29|, |90-74.29|, |85-74.29|, |70-74.29|, |70-74.29|, |95-74.29|, |55-74.29| which simplify to 9.29, 15.71, 10.71, 4.29, 4.29, 20.71, 19.29

The sum of the absolute differences is 84.29

Finally, divide the sum by the total count: 84.29/7 = 12.04

So, the mean absolute deviation for the given set is approximately 12.04

Learn more about mean absolute deviation here:

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PLEASE HELP W/ EXPEDITE AND URGENCY!What is the approximate volume of a sphere with a radius of 9 in.? Use 3.14 to approximate pi and express your answer in hundredths.
____in3

Answers

You don't need expedite and you don't need urgency.
All you need is the formula for the volume of a sphere.

==> Volume of a sphere = (4/3) (pi) (radius)³ .

The question gave you the radius, and told you what to use
for 'pi', so now you have all the information you need.

Becky wants to fence in a rectangular play area for her dog. If she was 82 feet of fencing and wants the length of the play area to be 9 feet longer than its width then what should the dimensions of the play area be?

Answers

ok
fencing=perimiter
perimiter=L+L+W+W=2L+2W=2(L+W)
82=2(L+W)
divid eboth sides by 2 for ease of use
41=L+W

if she wants legnth to be 9 more than width, then
L=9+W
subsitute 9+W for L
41=9+W+W
41=9+2W
subtract 9
32=2W
divide 2
16=W

subsitute
L=9+W
L=9+16
L=25

the pen should be 25 feet by 16 feet

length= width+9 ----- Now we can substitute length with width!
Perimeter = 2(length) + 2(width)
Perimeter = 82
82= 2(w+9) + 2w
41 = w+ 9 + w
41-9 = 2w
32 = 2w
16= w (now plug w into the equation for length)
length = 16 + 9 = 25

SOO... Dimensions = 16 x 25

If 1/4
inch equals 50 miles, find the miles represented by 4 1/2
inches.

Answers

Answer:

900

Step-by-step explanation:

Given: 1/4 in. = 50 miles

Find the amount of miles per inch. Multiply 4 to both sides of the equation.

(1/4 in.) x (4) = (50 miles) x (4)

4/4 in. = 200 miles

1 in. = 200 miles

Now, find the amount of miles for 4 1/2 in. Multiply 4 1/2 to both sides.

Note that 4 1/2 = 4.5

(1 in.)(4.5) = (200 miles) x (4.5)

4.5 = 200 x 4.5

4.5 = 900

900 miles is your answer.

Answer:

900 miles

Step-by-step explanation:

Well, 200 miles is 1 inch. 100 miles is 1/2 an inch.

Factorise 56x + 35. Need to know asap please.

Answers

The answer is 7(8x+5)

Can someone figure out the least to greatest part?

Answers

well I know the first one it will be

-0.0001, then -0.001, then -0.01, lastly -0.1

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