Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 1 - Whole Numbers - Review Exercises: 125

Answer

Estimate: 500; Exact: 513

Work Step by Step

To estimate the difference in spending for others vs themselves, we round 620 to 600 and round 107 to 100, and subtract the rounded numbers: 600 - 100 = 500 To find the exact difference in spending, we subtract the actual numbers: 620 - 107 = 513
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