An experienced roofer can roof a house in 46 hours. A beginning roofer needs 69 hours to complete the same job. Find how long it takes for the two to do the job together. It will take (Simplify your answer.) hour(s) for the two to do the job together.
An experienced roofer can roof a house in 46 hours. A beginning roofer needs 69 hours to complete the same job. Find how long it takes for the two to do the job together. It will take (Simplify your answer.) hour(s) for the two to do the job together.
Chapter7: Rational Expressions And Functions
Section7.5: Solve Applications With Rational Equations
Problem 309E: Josephine can correct her students test papers in 5 hours, but if her teacher’s assistant helps, it...
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