Answer
See below
Work Step by Step
The function is $p=3qr$
Plug in:
$3(-4)r=20\\-12r=20\\3r=-5\\r=\frac{-5}{3}$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 8 Rational Functions - Standardized Test Practice - Multiple Choice - Page 610: 4
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