Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 3 - Solving Inequalities - Common Core Cumulative Standards Review - Selected Response - Page 230: 16


3600 square feet

Work Step by Step

$\frac{400 ft^{2}}{5 min}=\frac{x}{45min}$ (Cross multiply, 45 times 400, and 5 times x) $5x=400(45)$ $5x=18,000$ (Divide each side by 5) $x=3600 ft^2$
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