Basic College Mathematics (10th Edition)

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

Chapters 1-7 - Cumulative Review Exercises - Page 530: 35


$120$ rows

Work Step by Step

We know that Akuba knits 5 cm of scarf in 6 rows. We figure out how many rows would equal 100 cm with a proportion: $\displaystyle \frac{5~cm}{6~rows}=\frac{100~cm}{x~rows}$ We cross-multiply: $5*x=100*6$ $5x=600$ $x=600/5$ $x=120$ rows
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