Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Chapter 9 - Cumulative Review - Page 678: 41

Answer

$8\frac{1}{8}$ inches

Work Step by Step

Let $d$ be the distance a spring stretches. Let $w$ be the weight. $d=kw$ $d=5; w=40$ $5=k(40)$ $k=\frac{1}{8}$ $d=\frac{1}{8}w$ $w=65$ $d=\frac{1}{8}(65)$ $d=\frac{65}{8}=8\frac{1}{8}$ inches
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