Answer
40 yd
Work Step by Step
p = 2L + 2w
120 = 2(20) + 2L
120 - 40 = 2L
80 = 2L
80/2 = 2L/2
40 = L
Algebra 1
by Hall, Prentice
Published by
Prentice Hall
ISBN 10:
0133500403
ISBN 13:
978-0-13350-040-0
Chapter 2 - Solving Equations - 2-5 Literal Equations and Formulas - Lesson Check - Page 112: 5
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