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) (Show Source):
You can put this solution on YOUR website! 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