College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 1 - Equations and Inequalities - Exercise Set 1.3: 70

Answer

$r= 1-\frac{C}{S}$

Work Step by Step

$S=\frac{C}{1-r}$ Solve for $r$ $S(1-r)= C$ $S-Sr=C$ $S-C=Sr$ $\frac{S-C}{S}=r$ or $r= 1-\frac{C}{S}$
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