Elementary Algebra

Published by Cengage Learning
ISBN 10: 1285194055
ISBN 13: 978-1-28519-405-9

Chapter 4 - Proportions, Percents, and Solving Inequalities - 4.3 - More on Percents and Problem Solving - Problem Set 4.3: 32

Answer

They should be considering a 2240 square foot house.

Work Step by Step

Because the house they are looking for will be 30% smaller than the one they own now, the new house will be 100% - 30% = 70% the size of the current house. The current house is 3200 square feet, so the new one will be: 3200 $\times$ 70% = 3200 $\times$ 0.7= 2240 They should be considering a 2240 square foot house.
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