Basic College Mathematics (10th Edition)

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

Chapter 4 - Decimals - 4.5 Dividing Decimal Numbers - 4.5 Exercises - Page 304: 27


Estimate: 1 The given answer, 1.135, is reasonable.

Work Step by Step

We need to check whether the answer given is reasonable: $54.6\div 48.1=1.135$ We estimate the answer by rounding: $54.6\div 48.1\approx 50\div 50 =1$ We see that the given answer, $1.135$, and the estimate, $1$, are very close. Thus the given answer is reasonable. (We do not need to find the exact answer if the answer is reasonable.)
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