Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 8 - Personal Finance - 8.3 Simple Interest - Exercise Set 8.3: 29

Answer

$P=\dfrac{A}{1+rt}$

Work Step by Step

Divide $(1+rt)$ on both sides of the equation to obtain: $\dfrac{A}{1+rt}=\dfrac{P(1+rt)}{1+rt}$ Cancel the common factors to obtain: $\require{cancel} \\\dfrac{A}{1+rt} = \dfrac{P\cancel{(1+rt)}}{\cancel{1+rt}} \\\dfrac{A}{1+rt} = P$
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