SOLUTION: the perimeter of a rectangle is 144 feet. the length of the rectangle is 3 times the width. find the length, width, and area of the rectangle.
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Question 477070: the perimeter of a rectangle is 144 feet. the length of the rectangle is 3 times the width. find the length, width, and area of the rectangle.
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Let 
represent the length of the rectangle. Let 
represent the width. We are given that 
The perimeter of a rectangle is given by 
Substituting:
\ =\ 2(3w)\ +\ 2w)
But since you were given that the perimeter is 144 feet:
\ +\ 2w\ =\ 144)
Solve for to get the width. Calculate 
to get the length. Calculate 
to get the area.
John
My calculator said it, I believe it, that settles it
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