Basic College Mathematics (10th Edition)

Published by Pearson
ISBN 10:
ISBN 13:

Chapter 5 - Ratio and Proportion - 5.2 Rates - 5.2 Exercises - Page 344: 19

Answer

Lower unit cost is $0.206/oz, so the best buy is the 14 oz box of cereal.

Work Step by Step

$\frac{2.49}{12 oz}$ = 0.208/oz $\frac{2.89}{14 oz}$ = 0.206/oz $\frac{3.96}{18 oz}$ = 0.220/oz
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