I need help figuring out the equation to solve the problem

label Algebra
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A rectangular lot whose perimeter is 330ft is fenced along three sides.  An expensive fencing along the lot's length cost $18 per foot.  An inexpensive fencing along the two sides widths cost only $3 per foot.  The total cost of the fencing along the three sides comes to $2430.  What are the lot's dimensions?

May 12th, 2015

Let length of plot be L and breadth be B.

Then as is it fenced form 3 sides, and one length side is unfenced,

Total fencing,

2B+L=330

Now, cost of fencing,

18*L+3*(2B)=2430

Solving both equations

B=96 ft

L=117 ft


May 12th, 2015

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May 12th, 2015
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