SOLUTION: The width of the rectangle is one-four5 of its length. If the perimeter is 40 cm, find the dimensions of the rectangle. (2 variables and full solution please, thanks!)
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Question 1148681: The width of the rectangle is one-four5 of its length. If the perimeter is 40 cm, find the dimensions of the rectangle. (2 variables and full solution please, thanks!)
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
width=x
length=y
half the perimeter is x+y=20
but x=(1/4)y
so y+(1/4)y=20
(5/4)y=20
y=20(4/5)=16 cm length
width is (1/4)16=4 cm width
Perimeter is 2x+2y=40 cm
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