SOLUTION: you have 480 feet of fencing to enclosea rectangular garden you want the length of the gardrn to be 30 ft greater than the width find the length and width of the garden if you use

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Question 495496: you have 480 feet of fencing to enclosea rectangular garden you want the length of the gardrn to be 30 ft greater than the width find the length and width of the garden if you use all the fencing
Answer by Earlsdon(6294) About Me  (Show Source):
You can put this solution on YOUR website!
When the fence is finished, its perimeter (P) will be 480 feet.
The formula for the perimeter of a rectangle is:
P+=+2%28L%2BW%29 The length L+=+W%2B30 and W is the width, so...
480+=+2%28%28W%2B30%29%2BW%29 Simplify and solve for W.
480+=+2%282W%2B30%29 Divide both sides by 2.
240+=+2W%2B30 Subtract 30 from both sides.
210+=+2W Divide by 2.
W+=+105feet, and...
L+=+W%2B30
L+=+105%2B30
L+=+135feet.
Check:P+=+2%28L%2BW%29
480+=+2%28135%2B105%29
480+=+2%28240%29
480+=+480 OK!