Algebra 1

Published by Prentice Hall
ISBN 10: 0133500403
ISBN 13: 978-0-13350-040-0

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

Answer

27 feet (the error is shown below)

Work Step by Step

The student is incorrect with his conversion factor. By writing 3 yards / foot, the student implies that there are 3 yards in a foot. However, there are actually 3 feet in a yard. Thus, we obtain: $\frac{9 yd}{1} \times \frac{3 feet}{1 yd}=27 ft$
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