Answer
9%
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%
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
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