A carpenter is assigned a job of expanding a rectangular deck where the width is one-sixth the length. The length of the deck is to be expanded by 4 feet, and the width by 2feet. If the area of the new rectangle deck is 56 ft^2 larger than the area of the original deck,find the dimensions of the original deck
Let the original deck length be L Let the original deck width be W
(L + 4)*(W + 2) = L*W + 56 LW + 2L + 4W + 8 = L*W + 56 2L + 4W + 8 = 56 2L + 4W = 48 L + 2W = 24 w = 1/6*L L + 2*(1/6 L ) = 24 L + 1/3 L = 24 3L + L = 72 4L = 72 L = 18 W = 3
You should check this answer to see if it is right ( it does check ) Sometimes it is better to leave a fact alone until you can simply the first fact as much as possible.
