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: 20

Answer

Lower unit cost is $1.058/can, so the best buy is 5 cans.

Work Step by Step

$\frac{2.18}{2 cans}$ = 1.090/can $\frac{3.57}{3 cans}$ = 1.190/can $\frac{5.29}{5 cans}$ = 1.058/can
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