SOLUTION: a carpenter is building a rectangular fence for a playground .one side of the play ground is the wall of the bulding 70ft .he plans to use 340ft of fencing mteril.what is the lengt

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Question 805169: a carpenter is building a rectangular fence for a playground .one side of the play ground is the wall of the bulding 70ft .he plans to use 340ft of fencing mteril.what is the length of play ground if the width is 70ft ?
Answer by KMST(5328) About Me  (Show Source):
You can put this solution on YOUR website!
If the 70-foot long wall of the building is one side of the rectangular playground
and the adjacent sides are x feet long, we need
x%2B70%2Bx feet of fencing.

Our equation is
x%2B70%2Bx=340
2x%2B70=340
2x=340-70
2x=270
x=270%2F2
highlight%28x=135%29
The playground will be highlight%28135%29 feet long.