Algebra 2 (1st Edition)

by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee

Published by McDougal Littell

ISBN 10: 0618595414

ISBN 13: 978-0-61859-541-9

Chapter 2 Linear Equations and Functions - Chapter Test - Page 145: 25

Answer

See below.

Work Step by Step

Let $x$ be the number of thousands of miles driven. Then the depth is: $8-0.12x$. So when the depth is $2$, then: $2=8-0.12x\\6=0.12x\\x=50$. Thus it will be like that after $50$ thousand miles.

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