Answer
$n = 9.6$ feet
Work Step by Step
$\frac{125}{3} = \frac{400}{n}$
Multiply both sides by n
$\frac{125n}{3} = 400$
Multiply both sides by 3
$125n = 1200$
Divide both sides by 125
$n = 9.6$
Prealgebra (7th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321955048
ISBN 13:
978-0-32195-504-3
Chapter 6 - Section 6.3 - Proportions and Problem Solving - Exercise Set - Page 439: 60
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