If a bathtub comfortably holds 30 gallons of water and a shower produces 2 gallons of water per minute, is it economically smarter to take a bath or take a 20-minute shower? Why?

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter3: Solving Equation And Problems
Section3.5: Equations With The Variable On Both Sides
Problem 18P
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If a bathtub comfortably holds 30 gallons of water and a shower produces 2 gallons of water per minute, is it economically smarter to take a bath or take a 20-minute shower? Why?

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