Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 6 - Section 6.2 - Integrated Review - Ratio, Rate, and Proportion - Page 429: 17


$\frac{3\text{ inches}}{\text{second}}$

Work Step by Step

21 inches every 7 seconds --> $\frac{21\text{ inches}}{7\text{ seconds}}=\frac{21\text{ inches}\div7}{7\text{ seconds}\div7} = \frac{3\text{ inches}}{\text{second}}$
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