Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 1 - Section 1.7 - Modeling with Equations - 1.7 Exercises - Page 75: 31

Answer

8

Work Step by Step

We want to calculate the number of overtime hours (x). Regular pay = 7.5 Overtime pay = 1.5$\times$7.5=11.25 Gross pay for the week =352.5 Overtime hours are counted after 35 regular hours per week. 352.5=35$\times$7.5+11.25x 352.5=262.5+11.25x 90=11.25x x=$\frac{90}{11.25}$=8
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