   Chapter 9.1, Problem 57ES Mathematical Excursions (MindTap C...

4th Edition
Richard N. Aufmann + 3 others
ISBN: 9781305965584

Solutions

Chapter
Section Mathematical Excursions (MindTap C...

4th Edition
Richard N. Aufmann + 3 others
ISBN: 9781305965584
Textbook Problem

Write an equation as part of solving the problem.Auto Repair The cost to replace a water pump in a Corvette was $355 . This included$ 115 for the water pump plus $80 / h for labor. How many hours of labor were required to replace the water pump? To determine To find : how many hours of labour were required to replace the water pump? Explanation Given information : The cost to replace a water pump in a Corvette was$355. This include $115 for the water pump plus$80/h for labour.

Calculation: From the given information the cost to replace a water pump in a Corvette was $355. This include$115 for the water pump plus $80/h for labour. Let the hours of labour were required is denoted by x . Therefore the$80x will be required for labour.

Hence 355=115+80x

Subtracting both sides by 115,

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