SOLUTION: the width if a rectangle is 8 feet less then the lenght. If the area is 20 square feets,find the lenght and width.
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Question 224582: the width if a rectangle is 8 feet less then the lenght. If the area is 20 square feets,find the lenght and width. Answer by checkley77(12844) (Show Source):
You can put this solution on YOUR website! W=L-8
WL=20
(L-8)L=20
L^2-8L-20=0
(L-10)(L+2)=0
L-10=0
L=10 ANSWER FOR THE WIDTH
W=10-2
W=2 ANSWER FOR THE WIDTH.
pROOF:
2*10=20
20=20
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