Prealgebra (7th Edition)

Published by Pearson
ISBN 10: 0321955048
ISBN 13: 978-0-32195-504-3

Chapter 6 - Section 6.1 - Ratios and Rates - Exercise Set - Page 419: 63


The second buy, 0.399 dollars/ounce, is the better buy.

Work Step by Step

First buy 3.29 dollars for 8 ounces. For one ounce? unit price is $\frac{3.29dollars}{ 8 ounces}$= =0.411dollars/ounce Second buy 4.79 dollars for 12 ounces. For one ounce? unit price is $\frac{4,79dollars}{ 12 ounces}$ =0.399 dollars/ounce The second buy is the better buy.
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