Thinking Mathematically (6th Edition)

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

Chapter 8 - Personal Finance - 8.1 Percent, Sales Tax and Discounts - Exercise Set 8.1: 69

Answer

The total cost of the iPad is $\$648.72$

Work Step by Step

To express a percent as a decimal, we can move the decimal point two places to the left. $15\% = 0.15$ $6\% = 0.06$ We can calculate the amount of the discount. $discount = (0.15)(\$720)$ $discount = \$108$ The amount of the discount is $\$108$ We can calculate the sale price. $sale~price = \$720 - \$108$ $sale~price = \$612$ We can calculate the amount of the tax. $tax = (0.06)(\$612)$ $tax = \$36.72$ We can find the total cost. $total~cost = \$612 + \$36.72$ $total~cost = \$648.72$ The total cost of the iPad is $\$648.72$
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