Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 6 - Percent - 6.6 Solving Application Problems with Percent - 6.6 Exercises - Page 440: 31

Answer

The rate of sales tax is 5%.

Work Step by Step

tax=rate*price $99=(r)(1980)$ $99\div1980=1980r\div1980$ $0.05=r$
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