Answer
$P=2(l+w)$.
Work Step by Step
The perimeter is $=P$.
The length is $=l$.
The width is $=w$.
Twice the sum of its length and its width is
$=2(l+w)$.
Perimeter is equal to twice the sum of the length and the width.
$P=2(l+w)$.
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Appendix A - Review - A.1 Algebra Essentials - A.1 Assess Your Understanding - Page A13: 132
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