   Chapter 8.4, Problem 42E Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085

Solutions

Chapter
Section Elementary Geometry For College St...

7th Edition
Alexander + 2 others
ISBN: 9781337614085
Textbook Problem

In exercises 34-45, use your calculator value of π unless otherwise stated. Round answers to two decimal places.A pizza with a 12 in diameter costs $8.95. A 16 in diameter pizza with the same ingredients cost$14.95. Which pizza is the better buy.

To determine

To Find:

Which pizza is better buy.

Explanation

It is given that the diameter of the pizza is 12 in.

Therefore, the radius of the pizza is r=d2=122=6

The area of the pizza is A=πr2.

Here, π=3.1416.

Therefore, A=3.1416(6)2=113.09.

Therefore, the area of the pizza is 113.09 in2.

The cost of the pizza is \$8.95.

The cost of the pizza per square inch is 113.098.95=12.64.

The diameter of the other pizza is 16 in

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