Basic College Mathematics (10th Edition)

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

Chapter 4 - Decimals - 4.6 Fractions and Decimals - 4.6 Exercises - Page 315: 76

Answer

(a) Her answer is wrong because she inappropriately moved the place values of the digits the right of the decimal. (b) 2.35

Work Step by Step

Sandra divided the fraction correctly to get 0.35. However, she added incorrectly because instead of adding the ones places together, (2+0), she moved the zero to the tenths place of 0.035. This changed the value of the fraction portion of the number and made her answer incorrect. If she lined up the decimals and added the place values correctly, the answer would be 2+0.35=2.35.
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