Intermediate Algebra for College Students (7th Edition)

Published by Pearson
ISBN 10: 0-13417-894-7
ISBN 13: 978-0-13417-894-3

Chapter 1 - Section 1.5 - Problem Solving and Using Formulas - Exercise Set: 56

Answer

$M=\dfrac{P-C}{C}$

Work Step by Step

Subtract by $C$ to both sides: $P-C=C+MC-C \\P-C=MC$ Divide by $C$ on both sides: $\dfrac{P-C}{C}=\dfrac{MC}{C} \\\dfrac{P-C}{C}=M \\M=\dfrac{P-C}{C}$
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