Basic College Mathematics (9th Edition)

Published by Pearson
ISBN 10: 0321825535
ISBN 13: 978-0-32182-553-7

Chapter 7 - Measurement - 7.1 Problem Solving with U.S. Measurement Units - 7.1 Exercises: 25

Answer

0.25 ft or $\frac{1}{4}$ ft

Work Step by Step

3 in. = ft Use a unit fraction with foot (the unit for your answer) in the numerator, and inches (the unit being changed) in the denominator. Because 12 inches (in.) = 1 foot (ft), the necessary unit fraction is (1 foot)/(12 inches) Multiply 3 in. times the unit fraction. 3 * (1 ft)/(12 in.) = (1 )/(4 ) ft = 0.25 ft
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