Basic College Mathematics (10th Edition)

by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.

Published by Pearson

ISBN 10: 0134467795

ISBN 13: 978-0-13446-779-5

Chapter 2 - Multiplying and Dividing Fractions - 2.8 Multiplying and Dividing Mixed Numbers - 2.8 Exercises - Page 175: 8

Answer

Estimate: $10$ Exact: $10\frac{1}{8}$

Work Step by Step

Estimate: Round the numbers to 5 and 2 and multiply. Exact: Turn numbers into improper fractions: $\frac{9}{2}, \frac{9}{4}$ multiply: $\frac{9}{2}\times\frac{9}{4} = \frac{81}{8}$ Convert to a mixed number: $10\frac{1}{8}$

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