Answer
$r=\frac{A-P}{P}$
Work Step by Step
$P=\frac{A}{1+r}\\P(1+r)=A\\P+Pr=A\\Pr=A-P\\r=\frac{A-P}{P}$
Intermediate Algebra for College Students (7th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13417-894-7
ISBN 13:
978-0-13417-894-3
Chapter 6 - Section 6.7 - Formulas and Applications of Rational Equations - Exercise Set - Page 475: 5
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