SOLUTION: The perimeter of a rectangle is 114 ft.Its length is 3 more than 2x its width.Find the dimensions of the rectangle.

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Question 123553This question is from textbook prentice hall mathematics
: The perimeter of a rectangle is 114 ft.Its length is 3 more than 2x its width.Find the dimensions of the rectangle. This question is from textbook prentice hall mathematics

Answer by elima(1433) About Me  (Show Source):
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The perimeter of a rectangle is 114 ft.Its length is 3 more than 2x its width.Find the dimensions of the rectangle.
perimeter=2L+2w
L=2w+3
114=2(2w+3)+2w
114=4w+6+2w
Subtract 6 from both sides and collect like terms;
108=6w
divide each side by six:
18=w
L=2(18)+3
L=39
:)