A swimming pool is drained at the end of each summer. Fifteen gallons of water are removed per minute. How much does the amount of water in the pool change in one hour? (There are 60 minutes in one hour.)

-900

15 * 60 = _______ gallons

To calculate the change in the amount of water in the pool in one hour, we need to determine how much water is drained from the pool in 60 minutes.

We already know that 15 gallons of water are removed per minute, so to find the amount drained in 60 minutes, we can multiply 15 gallons/minute by 60 minutes:

15 gallons/minute * 60 minutes = 900 gallons.

Therefore, the amount of water in the pool changes by 900 gallons in one hour.

900

Right. The pool level goes down 900 gallons an hour.