Problema Solution
Mel plans to fence his yard for his new puppy. The yard is a59 ft by96 ft rectangle. Fencing costs$5per 10 ft section. What is the cost of the fence
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let
w = 59 ft the width of the rectangle yard
l = 96 ft the length of the rectangle yard
the total length of the fence is equal to the perimeter of the rectangle yard that is
P = 2(l + w)
P = 2(59 + 96)
P = 310 ft
the cost of the fencing is $5 per 10 ft, and let x = the cost of the fence for 310 ft. we have the following proportion
5 : 10 = x : 310
by solving we find
x = $155
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the cost of the fence is $155.