Basic College Mathematics (10th Edition)

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

Chapter 7 - Measurement - Summary Exercises - U.S. and Metric Measurement Units - Page 504: 31


$ 5.19

Work Step by Step

Given Vernice bought a 12 oz bag of chips for $3.89 today To find the price per pound to the nearest cent First we need to convert the ounces into pounds Use a unit fraction with pounds (the unit for your answer) in the numerator, and ounces (the unit being changed) in the denominator. Because16 ounces (oz) = 1 pound (lb), the necessary unit fraction is (1 lb)/(16 ounces) Multiply 12 oz times the unit fraction. 12 oz *(1 lb)/(16 ounces) = 3/4 lb= 0.75 lb Now we find the price per pound= 3.89/0.75 = 5.1866 = $ 5.19(rounded) Therefore the price per pound to the nearest cent is $ 5.19
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