College Algebra (10th Edition)

Published by Pearson
ISBN 10: 0321979478
ISBN 13: 978-0-32197-947-6

Chapter 1 - Section 1.1 - Linear Equations - 1.1 Assess Your Understanding: 78

Answer

r = $\frac{\frac{A}{P} - 1 }{t}$

Work Step by Step

A = P(1 + rt) To make "r" the subject, $\frac{A}{P}$ = 1 +rt $\frac{A}{P}$ - 1 = rt r = $\frac{\frac{A}{P} - 1 }{t}$
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