Basic College Mathematics (10th Edition)

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

Chapter 4 - Decimals - 4.3 Adding and Subtracting Decimal Numbers - 4.3 Exercises - Page 289: 50

Answer

$$ .25 \ dollars $$

Work Step by Step

We first estimate the difference by rounding the costs to the nearest dollar: $$ =20 \ dollars - 20 \ dollars \\ \approx 0 \ dollars $$ The exact value is: $$ 20.24 \ dollars - 19.99 \ dollars \\ = .25 \ dollars $$
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