SOLUTION: Please help me solve this word problem. Fred has available 400 yards of fencing and wishes to enclose a rectangular area. Express the area A of of the rectangle as a function o

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Question 507236: Please help me solve this word problem.
Fred has available 400 yards of fencing and wishes to enclose a rectangular area. Express the area A of of the rectangle as a function of the width x of the rectangle.

Answer by Gogonati(855) About Me  (Show Source):
You can put this solution on YOUR website!
The perimeter of the rectangular P=2w+2l. Let the width be x then the length will be:l=%28400-2x%29%2F2=200-x Now that we know the length and width easy can represent the area:
A=l%2Aw=%28200-x%29x=200x-x%5E2