   Chapter 9.2, Problem 12ES Mathematical Excursions (MindTap C...

4th Edition
Richard N. Aufmann + 3 others
ISBN: 9781305965584

Solutions

Chapter
Section Mathematical Excursions (MindTap C...

4th Edition
Richard N. Aufmann + 3 others
ISBN: 9781305965584
Textbook Problem

Consumerism Which is the more economical purchase, a 30 -ounce jar of mayonnaise for $4.29 or a 48 -ounce jar of mayonnaise for$ 6.29 ?

To determine

To determine the more economical purchase in one of the two products: a 30-ounce jar of mayonnaise for $4.29 and a 48-ounce jar of mayonnaise for$6.29.

Explanation

Given information: The two products are a 30-ounce jar of mayonnaise for $4.29 and a 48-ounce jar of mayonnaise for$6.29.

Calculation:

There are two cases given from which economical purchase is to be identified.

To do that we should have to calculate the unit rate for both the cases and compare which unit rate is less. The lesser unit rate purchase would be more economical. The unit rate in terms of dollars should be calculated.

Case i: 30-ounce jar of mayonnaise for $4.29 4.29 dollars30 ounces The unit rate is 4.2930=0.143 =0.143 dollars1 ounce Thus, the mayonnaise rate is 0.143 dollars1 ounce or$0

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