Monica, still, takes one hour to wash a car and Bill takes two hours to wash a car.  If they work together, how long will it take them to wash one car?

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter7: Rational Expressions And Functions
Section7.5: Solve Applications With Rational Equations
Problem 308E: Brian can lay a slab of concrete in 6 hours, while Greg can do it in 4 hours. If Brian and Greg work...
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  1. Monica, still, takes one hour to wash a car and Bill takes two hours to wash a car.  If they work together, how long will it take them to wash one car?
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