Algebra: A Combined Approach (4th Edition)

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

Chapter 9 - Section 9.4 - Variation and Problem Solving - Exercise Set: 29

Answer

$r=kst^3$

Work Step by Step

Because $r$ varies jointly as $s$ and the cube of $t$, we equate $r$ to a constant multiple of $s$ and $t^3$: $r=kst^3$.
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