SOLUTION: the legnth of a rectangle is 3 cm less than 4 times the width. the perimeter is 114 cm. find the width

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Question 799333: the legnth of a rectangle is 3 cm less than 4 times the width. the perimeter is 114 cm. find the width
Answer by thejackal(72) About Me  (Show Source):
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Let width be = W cm
thus Length L = 4W - 3 cm
If perimeter P = 114 cm
then the expression P = 2L + 2W holds
thus 114 = 2(4W - 3) + 2(W)
114 = 8W - 6 + 2W
solve for W to get 10.8 cm