Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10: 0134467795
ISBN 13: 978-0-13446-779-5

Chapter 6 - Percent - 6.6 Solving Application Problems with Percent - 6.6 Exercises - Page 439: 5


The tax rate is 3%. The total cost is 437.75.

Work Step by Step

$12.75=(r)(425)$ $12.75\div425 = (r)(425)\div425$ $0.03=r$ $cost=425+12.75=437.75$
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