SOLUTION: A farmer plans to build a fence around a rectangular pen that is 16 feet long. The area of the pen is 80 square feet. Is 38 feet of fencing enough to fence in the pen?

Question 213538: A farmer plans to build a fence around a rectangular pen that is 16 feet long. The area of the pen is 80 square feet. Is 38 feet of fencing enough to fence in the pen?
Answer by checkley77(12844) (Show Source): You can put this solution on YOUR website!
LENGTH=16 FT.
2L+2W=38
2*16+2W=38
32+2W=38
2W=38-32
2W=6
W=3 FT. IS THE WIDTH
ARE=16*3=48 FT^2.
NOT ENOUGH FENCING FOR 80 FT^ AREA
80/16=5 FT. IS THE WIDTH FOR THIS PEN.
2*16+2*5=32+10=42 FT. OF FENCING IS NEEDED FOR THIS AREA.
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