SOLUTION: The perimeter of a rectangular field is 300 meters. This field is to be fenced along three sides only. The fencing along its two lengths and one width is to be done at $50 per me

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Question 840977: The perimeter of a rectangular field is 300 meters. This field is to be fenced along three sides only. The fencing
along its two lengths and one width is to be done at $50 per meter. If the total cost of fencing is $12,000, what
are the field’s dimensions?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi,



2l + 2w = 300m

  l + w = 150m,  w = 150m-L

[2L + (150 - L)]50 = 12000

 100L + 7500 - 50L = 12000

    50L = 4500

      L = 90m  and W = 60m

CHECKING our answer***

 $50 * 240m = $12,000

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