Answer
$(80-x)(300+20x)$
Work Step by Step
Based on the answers from the previous two exercises, the
revenue $R$ generated when there are x increases of 20 dollars over 300 dollars can be found as:
$R=(80-x)(300+20x)$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 1 - Equations and Inequalities - 1.5 Applications and Modeling with Quadratic Equations - 1.5 Exercises - Page 135: 59
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