College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Appendix A - Calculations and Significant Figures - A. Exercises - Page 692: 2

Answer

129.4

Work Step by Step

If we take 26.7 from 102.68, we get 129.38. Because this is an addition problem, we need to express the answer by rounding it to the number of decimals as the least-accurate value in the original problem. The least-accurate value in the problem is 26.7, which has only one decimal place. So we round 129.38 to the nearest tenth, and we get 129.4 as the final answer.
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