Answer
width $= 5x-1+\frac{20}{x^2}$ feet
Work Step by Step
Area = length $\times$ width
$(15x^3-3x^2+60) = 3x^2 \times$ width
width $= \frac{15x^3-3x^2+60}{3x^2}$
width $= 5x-1+\frac{20}{x^2}$
Algebra: A Combined Approach (4th Edition)
by Martin-Gay, Elayn
Published by
Pearson
ISBN 10:
0321726391
ISBN 13:
978-0-32172-639-1
Chapter 5 - Review - Page 407: 121
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