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You are a contractor who is installing a new wooden fence for a customer. The dimensions of the fence are 20 feet long and 6 feet high. If each piece of wood is 72 inches tall and 4 inches wide and the wood costs $1.10 per square foot, how much will the wood for the new fence cost?
First we need to find the total number of woods required. This would be total area of fence divided by area of each wood. Remember to convert inch into feet.
Now we know the total number of planks, we need to find what is the cost of each plank. We know that one wood plank area is 2 sq. ft ( 6*0.33333). Therefore, the cost of each plank is = cost per area(sq.ft) multiply by total area (sq. ft).
cost per plank = 2 * $1.10 =$2.20.
We have total planks = 60 units and we have cost per plank = $2.20.
So, we can find total cost as 60*2.20= $132
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