Answer
$80\leq w \leq200$
Work Step by Step
$10\leq\frac{w}{2}-30\leq70$
(Add 30 to each part)
$40\leq\frac{w}{2}\leq100$
(Multiply each part by 2)
$80\leq w\leq200$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
Published by
Prentice Hall
ISBN 10:
0133281140
ISBN 13:
978-0-13328-114-9
Chapter 3 - Solving Inequalities - Common Core Cumulative Standards Review - Selected Response - Page 230: 26
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