Question

A swimming pool is being drained for maintenance. The volume of water in the pool changes by −12 gallons every minute.

What is the change in volume over 90 minutes?

Enter the your answer in the box.

Answer 1

Answer:

-1080 gallons

Step-by-step explanation:

If the volume of water in the pool changes by -12 gallons every minute, we just have to multiply -12 by 90 to see how much it will change after 90 minutes. You can also look at it this way:

$\frac{-12}{1} = \frac{x}{90}$

-12 times 90 is -1080, so this is the answer to our problem.