Problema Solution
An airport parking 1 7/10 lot is a rectangle of a mile wide and 2 3/4 of a mile long. How much fencing is needed to enclose the lot? Show work using fraction arithmetic, and include units with your answer..
Answer provided by our tutors
width = 1 7/10 = (1*10 + 7)/10 = 17/10 mi
length = 2 3/4 = (2*4 + 3)/4 = 11/4 mi
We need to find the perimeter of the rectangular lot:
P = 2*width + 2*length
P = 2*(17/10) + 2*(11/4)
P = 17/5 + 11/2
P = (17*2 + 11*5)/10
P = (34 + 55)/10
P = 89/10
P = 8 9/10 mi
8 9/10 miles of fencing is needed to enclose the lot.