Intermediate Algebra (6th Edition)

Published by Pearson
ISBN 10: 0321785045
ISBN 13: 978-0-32178-504-6

Chapter 2 - Section 2.3 - Formulas and Problem Solving - Exercise Set: 34


5 packages

Work Step by Step

We are given that the ceiling is rectangular and is 18 feet by 12 feet. Therefore, we know that the area of the ceiling is $18\times12=216$. The ballroom will require 216 one-foot-square tiles, and each package contains 50 tiles. $216\div50=4.32$ We can round up to 5 packages, since we will need to use at least some of the tiles in the 5th package.
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