Answer
9%
Work Step by Step
sales tax = tax rate $\times$ purchase price
103.50=r $\times$1150 divide both sides by 1150
$\frac{103.50}{1150}$=$\frac{r\times 1150}{1150}$
$\frac{103.50}{1150}$= r
0.09 = r
r = 9%
The 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 - Exercise Set - Page 512: 14
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