Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 5 - Linear Functions - 5-2 Direct Variation - Practice and Problem-Solving Exercises - Page 306: 43


a) 2/5 b) 52

Work Step by Step

Letting f=Force and w being weight, f=w×x, where is a number. Given the force and weight, the equation becomes 20=50×x. This leaves x=2/5. The equation becomes f=2/5×x. Plugging in 130, we get 52.
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