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 - Page 512: 6



Work Step by Step

The formula for simple interest is: $I=Prt$ where P = principal amount borrowed r = interest rate per year t = time Use the formula above to obtain: $I=\$18000(7.5\%)(\frac{18}{12}) \\I=\$18000(0.075)(\frac{18}{12}) \\I=\$2,025$
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