Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 2 - Solving Equations - 2-6 Ratios, Rates, and Conversions - Practice and Problem-Solving Exercises - Page 120: 36

Answer

The student flipped the units in the numerator and the denominator.

Work Step by Step

The student flipped the units in the numerator and the denominator. The student should have written: $9 yards \times (\frac{3 feet}{yard})=27 feet$. This cancels the units correctly so that the resulting units are feet.
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