SOLUTION: the width of a rectangle is 40 percent of the length. The perimeter of the rectangle is 42. Find the length and width of the rectangle.

SOLUTION: the width of a rectangle is 40 percent of the length. The perimeter of the rectangle is 42. Find the length and width of the rectangle.

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Question 565183: the width of a rectangle is 40 percent of the length. The perimeter of the rectangle is 42. Find the length and width of the rectangle.
Answer by ad_alta(240) (Show Source): You can put this solution on YOUR website!
Let 'l' be the length and 'w' the width. Then w=0.4l and 2l+2w=42. Substituting, 2l+2(0.4l)=42. Therefore l=15 and w=6.
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