Basic College Mathematics (10th Edition)

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

Chapter 2 - Multiplying and Dividing Fractions - 2.5 Multiplying Fractions - 2.5 Exercises - Page 151: 54


Approximately 75 New Hampshire supermarkets are in shopping centers. 61 supermarkets are in shopping centers.

Work Step by Step

Use front end rounding to estimate the number of supermarkets in New Hampshire. $163 \approx 200$ Multiply by $\frac{3}{8}$ to find the number that are in shopping centers. $200 \times \frac{3}{8}$ = $\frac{200}{1} \times \frac{3}{8}$ = $\frac{600}{8}$ = $\frac{600 \div 8}{8 \div 8}$ = $\frac{75}{1}$ = 75 To find the exact number that are in shopping centers multiply the exact number of New Hampshire supermarkets by $\frac{3}{8}$. $163 \times \frac{3}{8}$ = $\frac{163}{1} \times \frac{3}{8}$ = $\frac{489}{8}$ = $\frac{489 \div 8}{8 \div 8}$ = $\frac{61R1}{1}$ = $61 \frac{1}{8}$ $\approx 61$
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