Answer
$r=128.29 mph$
Work Step by Step
$d=rt$
$2447.8=r(19.08)$
$r=128.29 mph$
Intermediate Algebra (6th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321785045
ISBN 13:
978-0-32178-504-6
Chapter 2 - Section 2.3 - Formulas and Problem Solving - Exercise Set - Page 75: 45
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