Answer
$b=90$ cm
Work Step by Step
The perimeter of a rectangle can be calculated as:
$P=2a+2b$, where a and b are the width and the length of the rectangle.
Here:
$P=294$ cm
$a=57$ cm
$294=2\times 57+2b$
$294-114=180=2b$
$b=90$ cm
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 1 - Equations and Inequalities - 1.2 Applications and Modeling with Linear Equations - 1.2 Exercises - Page 100: 11
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