SOLUTION: 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 22 minutes requires 13.2 gallons of w

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Question 978383: 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 22 minutes requires 13.2 gallons of water. Find the amount of water used in a shower lasting 11 minutes.

Found 2 solutions by josgarithmetic, MathTherapy:
Answer by josgarithmetic(39625) About Me  (Show Source):
You can put this solution on YOUR website!
22=13.2*r because the constant of variation in this case is a rate, so choosing r just to be helpful in naming.

r=22%2F13.2

The question: r%2A11=Q
Q=%2822%2F13.2%29%2A11

Answer by MathTherapy(10555) About Me  (Show Source):
You can put this solution on YOUR website!

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 22 minutes requires 13.2 gallons of water. Find the amount of water used in a shower lasting 11 minutes.
1%2F2 the time (11 minutes), so 1%2F2 the amount of water. 1%2F2 of 13.2 is: highlight_green%286.6%29 gallons