Basic College Mathematics (10th Edition)

by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.

Published by Pearson

ISBN 10: 0134467795

ISBN 13: 978-0-13446-779-5

Chapters 1-4 - Decimals - Test - Page 328: 25

Answer

Estimate: 60 - 50 - 1 = Dollar 9 Exact: Dollar 11.17

Work Step by Step

Money Left = Money Has - Money Spent Money Left = 60 - 47.96 - 0.87 Lets Find Estimate: 47.96 (round to) 50 0.87 (round to) 1 Money Left = 60 - 47.96 - 0.87 = 60 - 50 - 1 = Dollar 9 Let's Find Exact: Money Left = 60 - 47.96 - 0.87 = 60 - (47.96 + 0.87) = 60 - (47.96 + 0.87) = 60 - (48.83) = Dollar 11.17

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