Answer
$l=19$
Work Step by Step
Given Information: perimeter formula is $P=2l+2w$, $P=46$ inches, $w=4$ inches, and $l$ is unknown.
$P=2l+2w$
$46=(2l)+(2\times4)$
$46=2l+8$
$38=2l$
$l=19$
Algebra 2 (1st Edition)
by Larson, Ron; Boswell, Laurie; Kanold, Timothy D.; Stiff, Lee
Published by
McDougal Littell
ISBN 10:
0618595414
ISBN 13:
978-0-61859-541-9
Chapter 1, Equations and Inequalities - 1.5 Use Problem Solving Strategies and Models - 1.5 Exercises - Skill Practice - Page 37: 8
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