Basic College Mathematics (9th Edition)

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

Chapter 1 - Whole Numbers - Review Exercises: 120


Estimate: 100,000; Exact: 153,223

Work Step by Step

To estimate, we first round 721,523 to 700,000 and round 568,300 to 600,000. We subtract the rounded numbers to find the estimated difference in population. 700,000 - 600,000 = 100,000 To find the exact difference, we subtract the actual population of Wyoming from the actual population of Alaska. 721,523 - 568,300 = 153,223
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