Solve.
-The amount of water used to take a shower is directly proportional to the amount of time that the shower is in use. A shower lasting 20 minutes requires 16 gallons of water. Find the amount of Water used in a shower lasting 4 minutes.
A) 3.2 gallons
B) 4 gallons
C) 80 gallons
D) 2.4 gallons

Question

Quizplus · Accepted Answer

The relationship between the amount of water used and the time the shower is in use is directly proportional. Therefore, if 20 minutes require 16 gallons, then 1 minute requires 16/20 = 0.8 gallons. For a 4-minute shower, the water used would be 4 * 0.8 = 3.2 gallons.

Solve. -The Amount of Water Used to Take a Shower Is