SOLUTION: the perimeter of a rectangular window is 24 feet. The width of the window is four feet more than the length. What are the dimensions of the window?

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Question 951669: the perimeter of a rectangular window is 24 feet. The width of the window is four feet more than the length. What are the dimensions of the window?
Answer by macston(5194) About Me  (Show Source):
You can put this solution on YOUR website!
L=length; W=width=L+4ft; P=perimeter=2(L+W)=24ft
P=2(L+W)
24ft=2(L+W) Divide each side by 2.
12ft=L+W Substitute for W
12ft=L+(L+4ft) Subtract 4ft from each side.
8ft=2L Divide each side by 2.
4ft=L ANSWER 1:The length is 4 feet.
W=L+4ft=4ft+4ft=8ft ANSWER 2: The width is 8 feet.
CHECK:
P=2(L+W)
24ft=2(4ft+8ft)
24ft=2(12ft)
24ft=24ft