SOLUTION: the length of a rectangle is 2cm more than 3 times the width. the area is 16Cm.find the length and the width.let x=be the width
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Question 844201: the length of a rectangle is 2cm more than 3 times the width. the area is 16Cm.find the length and the width.let x=be the width
Answer by checkley79(3341) (Show Source): You can put this solution on YOUR website!
L=3X+2
AREA=LX
16=(3X+2)X
16=X^2+2X
3X^2+2X-16=0
(X+8)X-2)=0
X-2=0
X=2 CM. ANS. FOR THE WIDTH
PROOF:
16=(3*2+2)2
16=(6+2)2
16=8*2
16=16
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