SOLUTION: A rectangular lot whose perimeter is 320 feet is fenced along three sides. An expensive fencing along the lot’s length costs $16 per foot and an inexpensive fencing along the two
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Question 857785: A rectangular lot whose perimeter is 320 feet is fenced along three sides. An expensive fencing along the lot’s length costs $16 per foot and an inexpensive fencing along the two side widths costs only $5 per foot. The total cost of the fencing along the three sides comes to $2140. What are the lot’s dimensions?
Answer by josgarithmetic(39618) (Show Source): You can put this solution on YOUR website!
x and y the dimensions.
-----perimeter
-----simplified
If x is length, then .
Applying Elimination Method, use perimeter equation as 5x+5y=160*5, 5x+5y=800;
indicating that y=160-90=70,
Length is 90, and width is 70.
If y is length, then .
You can try this route if you want.
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