Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 7 - Section 7.5 - Percent and Problem Solving: Sales Tax, Commission, and Discount - Exercise Set: 7

Answer

The purchase price is \$120. The total price including tax is \$130.20.

Work Step by Step

a) sales tax=tax rate * price $10.20=8.5\% \times p$ $10.20=0.085\times p$ $10.20\div0.085=0.085p\div0.085$ $120=p$ b) total price = purchase price + sales tax $t=120+10.20=130.20$
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