SOLUTION: Bob is building a rectangular pen for his dog. his brother gave him 64ft of fencing for free. What will the dimensions of the pen be if the length is 4 less than its twice its wi

Algebra ->  Equations -> SOLUTION: Bob is building a rectangular pen for his dog. his brother gave him 64ft of fencing for free. What will the dimensions of the pen be if the length is 4 less than its twice its wi      Log On


   

Question 101093: Bob is building a rectangular pen for his dog. his brother gave him 64ft of fencing for free. What will the dimensions of the pen be if the length is 4 less than its twice its width?
Answer by checkley71(8403) About Me  (Show Source):
You can put this solution on YOUR website!
L=2W-4
2(2W-4)+2W=64
4W-8+2W=64
6W=64+8
6W=72
W=72
W=12 ANSWER FOR THE WIDTH.
L=2*12-4
L=24-4
L=20
2*20+2*12=64
40+24=64
64=64