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a rectangular playground covers 4500m^2 its length is 40m longer than its width. what is the width of the playground?
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1 vote
a rectangular playground covers 4500m^2 its length is 40m longer than its width. what is the width of the playground?

User Zeinab Abbasimazar
by
7.5k points

1 Answer

3 votes
LW=area=4500
L=40+W
(40+W)(W)=4500
W²+40W=4500
W²+40-4500=0
factor
(W-50)(W+90)=0
set to zero
W-50=0
W=50

W+90=0
W=-90
false, can't have negative measures

W=50
L=40+W
L=40+50=90

the width is 50 m
User Kyle Greenlaw
by
7.8k points
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