Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
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Chapters 1-5 - Cumulative Review Exercises - Page 378: 26

Answer

She ran $7.15$ miles in all

Work Step by Step

The distance around Dunning Pond is $1 \frac{1}{10} = \frac{11}{10}$ miles. She ran $4 + 2 \frac{1}{2} = 4 + \frac{5}{2} = \frac{13}{2}$ times. In total she ran $\frac{11}{10} * \frac{13}{2} = \frac{143}{20} = 7.15$ miles
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