Problema Solution
Marion wants to create a dog pen by fencing a rectangular portion of her back yard. If the rectangle is 4 2/3 feet width and 7 3/4 fettling, how much fencing will she need to completely enclose a pen? Show work using fraction arithmetic, and include units with your answer.
Answer provided by our tutors
width = 4 2/3 ft
length = 7 3/4 ft
The perimeter of the rectangle is:
P = 2(length +width)
P = 2(4 2/3 + 7 3/4)
P = 2*((4 + 7) + (2/3 + 3/4))
P = 2*(11 + (2*4 + 3*3)/(3*4))
P = 2*(11 + 17/12)
P = 22 + 17/6
P = 22 + 2 5/6
P = 24 5/6 ft
She will need 24 5.6 feet fencing to enclose a pen.