Basic College Mathematics (9th Edition)

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

Chapter 1 - Whole Numbers - 1.10 Solving Application Problems - 1.10 Exercises: 19

Answer

Estimate: 700,000; Exact: 618,642

Work Step by Step

To estimate the total loss of life, we round each number to the nearest hundred-thousand: 110,070 rounds to 100,000. 250,152 rounds to 300,000. 94,120 rounds to 100,000. 164,300 rounds to 200,000. Then we add 100,000 + 300,000 + 100,000 + 200,000 = 700,000. To find the exact number of deaths, we add all of the actual numbers together: 110,070 + 250,152 + 94,120 + 164,300 = 618,642
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