Answer
l=$\frac{A-2wh}{2w+2h}$
Work Step by Step
A=2lw+2lh+2wh
A=l(2w+2h)+2wh
l(2w+2h)=A-2wh
l=$\frac{A-2wh}{2w+2h}$
College Algebra (6th Edition)
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-32178-228-3
ISBN 13:
978-0-32178-228-1
Chapter 1 - Mid-Chapter Check Point - Page 165: 27
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