Basic College Mathematics (10th Edition)

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

Chapter 4 - Decimals - 4.2 Rounding Decimal Numbers - 4.2 Exercises - Page 280: 13



Work Step by Step

We are asked to round 793.988 to the nearest tenth. Step 1. Draw a cut-off line after the tenths place. We are cutting off both 8s. They will be dropped. Step 2. We look at the first digit after the cut-off line, which is 8. Step 3. Since this number is greater than or equal to 5, we round up the digit in the tenths place by 1 to 10. We write the digit in the tenths place as 0 and regroup 1 to the ones place Therefore, 793.988 rounded to the nearest tenth is 794.0.
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