2 years ago

A little girl kicks a soccer ball. It goes 10 feet and comes back to her. How is this possible?

1 answer:

8 0

She is standing in front of a wall which is 10 feet away when she kicks the ball and it hits the wall and comes back to her by the virtue of Newton's third Law of motion! She kicks the ball into the air vertically above her and the ball rises to 10 feet and then comes back to her by the virtue of gravity!

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According to a census performed in a certain country in a particular year, about 209,280,000 of it's residents were adults, and

gayaneshka [121]

54160000/209280000

= 0.2587
=25.88%

7 0

3 years ago

The area of a rectangle is 229.2 m2. If the length is 15 m, what is the perimeter of the rectangle

igor_vitrenko [27]

Answer:

$\large\boxed{P=60.56\ m}$

Step-by-step explanation:

The formula of an area of a rectangle:

$A=lw$

l - length

w - width

We have

$A=229.2\ m^2\\\l=15\ m$

Substitute:

$15w=229.2$ <em>divide both sides by 15</em>

$w=15.28\ m$

The formula of a perimeter of a rectangle:

$P=2(l+w)$

Substitute:

$P=2(15+15.28)=2(30.28)=60.56\ m$

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3 years ago

How can percents describe a change in area?

Marianna [84]

Divide the change by the initial number to get a fraction and multiply by 100% to get a percent. The percent you get will describe the change in area in the mathematical language of numbers.

7 0

3 years ago

What is the ratio of 5 gallons blue paint to 9 gallons of yellow paint?

MakcuM [25]

Wouldn't you divide? If so, 5/9 = 0.6

7 0

3 years ago

Read 2 more answers

John and Samuel had a challenge. John told Samuel that 12 x 12=9. What strategy did John use to come up with his answer as 9? Ex

kondor19780726 [428]

Answer:

John added 1 +4 +4 to get 9 (12x12 = 144)

Step-by-step explanation:

12x12 actually equals 144

1 + 4 +4 = 9 so it appears John just added all the digits of 144 to get 9

8 0

3 years ago