Basic College Mathematics (10th Edition)

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

Chapter 4 - Decimals - Summary Exercises - Adding, Subtracting, and Multiplying Decimal Numbers - Page 297: 34

Answer

Estimate: 2434 Exact: 2432.3

Work Step by Step

We round each number to the nearest whole number: $$ 4\\ 7\\19\\2\\69\\2324\\1 \\ 8$$ Using this as an estimate for the total weight: $$ =4+7+19+2+69+2324+1+8 \\ =2434 $$ The exact value is 2432.4. Thus, the estimate is fairly close.
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