Answer
$C=1.2x$
Work Step by Step
Since we must add a 20 percent tip to the overall meal cost, x, it follows that the cost is:
$$ C = (1+.2) x \\C=1.2x$$
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 1, Equations and Inequalities - 1.5 Use Problem Solving Strategies and Models - 1.5 Exercises - Mixed Review - Page 40: 35
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