Question

Hello, I really need help on this assignment. 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

-1080 gallons

Explanation:

If the volume of water in the pool changes by -12 gallons per minute, what we must do is multiply -12 by the elapsed time, in this case it would be 90 minutes to determine how much it will change after 90 minutes. Just like that:

`\Delta v=90\cdot-12=-1080`

Which means that the change in volume after 90 minutes is 1080 less gallons.