Question

A water tank looses water at a constant rate. After one minute it contains 44.8 gallons of water and after five minutes it contains 32 gallons of water. If the amount of water depends on the amount of time that passes, what is the rate of change at which the water tank looses water?

Answer 1

2.56 gallons per minute!

Explanation:

44.8 gallons - 32 gallons = 12.8 gallons

12.8 gallons in 5 minutes - so we need to find the unit rate (per one minute)

12.8/5 = 2.56

2.56 gallons per minute!