You drained the water from your pool at the end of the summer. It took 60 minutes to drain 1,800 gallons of water. On average, by what amount did the water in the pool change per minute?

6 answers

I showed you how to do the last problem. Now it's your turn.

I'll be glad to check your answer.
1800/60=30 but i get confused when it has to be positive or negative
-300 gallons per minute

-30 gallons per minute

30 gallons per minute

300 gallons per minute

those are the answer choices and the answer i got was 30 but i need to know if it is -30 or 30
-30 gallons per minute
no
it actually is -30