Answer
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)
$x=3600 ft^2$
Algebra 1: Common Core (15th Edition)
by Charles, Randall I.
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
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