Basic College Mathematics (9th Edition)

by Lial, Margaret L.; Salzman, Stanley A.; Hestwood, Diana L.

Published by Pearson

ISBN 10: 0321825535

ISBN 13: 978-0-32182-553-7

Chapter 8 - Geometry - 8.6 Circles - 8.6 Exercises - Page 578: 40

Answer

Small: \$0.089 Medium: \$0.080 Large: $0.071 The large is the best buy.

Work Step by Step

The cost per square inch is found by dividing the cost of the pizza by the area of the pizza. Small: $7\div78.5=0.089$ Medium: $9\div113.04=0.080$ Large: $11\div153.86=0.071$ The large is the best buy because it has the lowest cost per square inch.

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