Solve.
-The amount of water used to take a shower varies directly as the amount of time that the shower is in use. A shower lasting 16 minutes requires 9.6 gallons of water. Find the amount of water used in a shower lasting 11
Minutes.
A)6 gallons
B)7.2 gallons
C)176 gallons
D)6.6 gallons

Question

Quizplus · Accepted Answer

The amount of water used is directly proportional to the time the shower is in use. So, the ratio of water used to time is constant.Let k be the constant of proportionality. Then,water used = k * timeFor a shower lasting 16 minutes, water used = 9.6 gallonsSo, 9.6 = k * 16k = 9.6 / 16k = 0.6For a shower lasting 11 minutes, water used = 0.6 * 11water used = 6.6 gallonsTherefore, the amount of water used in a shower lasting 11 minutes is 6.6 gallons.

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