Answer
6 hours.
Work Step by Step
Number of hours spent=
$\frac{\text{repair bill}-\text{parts cost}}{\text{labor cost per hour}}=\frac{\$553-\$265}{\$48}=6$
Big Ideas Math - Algebra 1, A Common Core Curriculum
by Larson, Ron; Boswell, Laurie
Published by
Big Ideas Learning LLC
ISBN 10:
978-1-60840-838-2
ISBN 13:
978-1-60840-838-2
Chapter 1 - Solving Linear Equations - 1.2 - Solving Multi-Step Equations - Exercises - Page 16: 16
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