SOLUTION: The length of a certain rectangle is 4cm less than twice it's width. Five times the width is 6cm less than it's perimeter. What are the dimensions of the rectangle?
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Question 1091553: The length of a certain rectangle is 4cm less than twice it's width. Five times the width is 6cm less than it's perimeter. What are the dimensions of the rectangle? Answer by addingup(3677) (Show Source):
You can put this solution on YOUR website! L = 2W-4
2L+2W = 5W+6
2(2W-4)+2W = 5W+6
4W-8+2W = 5W+6
6W = 5W+14
W = 14
L = 2W-4 = 2(14)-4 = 24
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Check:
2(24)+2(14) = 5(14)+6
48+28 = 70+6 Correct
