Problema Solution
a garden is in the shape of a square with a perimeter of 48 feet. the garden is surrounded by two fences, one fence is around the perimeter of the garden, whereas the second fence is 3 feet from the first fence on the outside. if the material used to build the two fences is $1.22 per foot, what was the total cost of the fences?
Answer provided by our tutors
let a = the length of the side if the square
the perimeter of the square is 48 ft
4a = 48 divide both sides by 4
a = 48/4
a = 12 ft
the garden is surrounded by two fences, one fence is around the perimeter of the garden, whereas the second fence is 3 feet from the first fence on the outside
4*a + 4(a + 2*3) = 4*12 + 4(12 + 6) = 48 + 72 = 120 ft
the cost of the fence is $1.22 per food
the cost of 120 ft fence will be: 120*1.22 = $146.4.