The Garzas have a kiddie pool and an adult swimming pool in their backyard. The kiddie pool is 7 feet long. The adult swimming pool is 42 feet long. How many times as long as the kiddie pool is the adult swimming pool?

Given:

The kiddie pool is 7 feet long. The adult swimming pool is 42 feet long.

To find:

How many times as long as the kiddie pool is the adult swimming pool?

Solution:

Let adult swimming pool is x times the kiddie swimming pool.

Divide both sides by 7.

Therefore, adult swimming pool is 6 times the kiddie swimming pool.

y=3n + 1

step-by-step explanation:

this is wrong because it says the second number is one less and i added one instead

x = ±sqrt(10)

step-by-step explanation:

5 - 2x² = -15

subtract 5 from each side

5-5 - 2x² = -15-5

-2x^2   = -20

divide by -2 on each side

-2x^2   /-2= -20/-2

x^2 =10

take the square root on each side

sqrt(x^2 )=±sqrt(10)

x = ±sqrt(10)

check:

5 - 2x² = -15

+sqrt(10)

5 - 2(sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15

-sqrt(10)

5 - 2(-sqrt(10))² = -15

5 -2(10) = -15

5 -20 = -15

-15 = -15