How do you do this?

Question

Sid has a swimming pool that needs to be drained. His pool holds 9,945.8 gallons of water and will need to drain completely in 5.9 hours. What is the change in water level per hour for Sid's swimming pool? Round your answer to the nearest hundredth.

Answer 1

9945.8/5.9 = 1685.728814 gallons per hour

1685.798814/9945.8 = about 16.95% change in water level, per hour. in 5.9 hours, 5.9x16.95 = 100% drained