SOLUTION: The width of a rectangle is 16 feet less than 3 times the length . if the area is 35 square feet , find the dimensions of the rectangle

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Question 1098839: The width of a rectangle is 16 feet less than 3 times the length . if the area is 35 square feet , find the dimensions of the rectangle
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
W=3L-16
and
A=LW
LW=35
Substituting,
L%283L-16%29=35
3L%5E2-16L-35=0
%28L-7%29%283L%2B5%29=0
Only positive values make sense for the length,
L-7=0
L=7ft
Now use either equation to solve for W.