Answer
$0.75\leq x\leq0.85$
Work Step by Step
Using part a). Let $x$ be the pill's weight. Then our inequality according to the exercise is: $|x-0.8|\leq0.05$. This implies $-0.05\leq x-0.8\leq0.05\\0.75\leq x\leq0.85$
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 - 1.7 Solve Absolute Value Equations and Inequalities - 1.7 Exercises - Problem Solving - Page 57: 76b
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