Answer
$30$ mph
Work Step by Step
$r=\frac{k}{t}$
$r=24;t=5$
$24=\frac{k}{5}$
$24\times5=\frac{k}{5}\times5$
$k=120$
$r=\frac{120}{t}$
Finding the rate needed to drive the same distance in 4 hours.
$t=4$
$r=\frac{120}{4}$
$r=30$ mph
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 9 - Section 9.4 - Variation and Problem Solving - Practice - Page 658: 4
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