Question 567860: The length of a rectangle is 3 feet less than twice the width of the rectangle. If the perimeter of the rectangle is 84 feet, find the width and the length.
Width = _____ft
Length=______ft.
x+x+x+x=84
L=2w-3 is what i have come up with but i am not sure where to go from there.
Answer by rapaljer(4671)   (Show Source):
You can put this solution on YOUR website! Let x = width
2x-3= length
2W + 2L = Perimeter
2(x) + 2(2x-3) = 84
2x+4x-6=84
6x-6=84
6x-6=84+6
6x=90
x=15 ft Width
2x-3 = 2*15-3 = 27 ft Length
Check: 2*15 + 2*27
30 +54
84 It checks!!
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