Answer
$y=100-x$
$A=100x-x^2$
Work Step by Step
$2y+2x=200$
$2y=200-2x$
$y=100-x$
$A=xy=x(100-x)$
$A=100x-x^2$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 3 - Review Exercises - Page 300: 22b
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