SOLUTION: Please help on this word problem. the length of the rectangle is three less than twice the width. If the perimeter is 36 cm, find the dimensions. thank you

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Question 196407: Please help on this word problem.

the length of the rectangle is three less than twice the width. If the perimeter is 36 cm, find the dimensions.

thank you
Answer by vleith(2983) About Me  (Show Source):
You can put this solution on YOUR website!
Perimeter of a Rectangle = 2*Length + 2*Width
You are told Length+=+%282%2AWidth%29+-+3
So
Perimeter+of+a+Rectangle+=+2%2ALength+%2B+2%2AWidth
36+=+%282%2A%282%2AWidth%29+-+3%29+%2B+2%2AWidth
36+=+4%2AWidth+-+6+%2B+2%2AWidth
42+=+6%2AWidth
7+=+Width
If the Width = 7 cm, then the Length = (2*7)-3 = 14-3 = 11.
Check your answer
Does 11+7+11+7 = 36???