Prealgebra (7th Edition)

by Martin-Gay, Elayn

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 - Practice - Page 509: 2

Answer

Work Step by Step

sales tax = tax rate $\times$ purchase price 1665 = r $\times$18500 Divide both sides by 18500 $\frac{1665}{18500}$=$\frac{r\times18500}{18500}$ 0.09=r r=9% The sales tax rate is 9%

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