A farmer wants to fence in a rectangular area that is 1/8 mile wide by 1/4 mile long. which of the following proportions can the farmer use to calculate how many feet of fencing he will need?

A) x/3 divided by 4 ft = 1 mile/5280ft

B) 3/4 miles divided by x = 1 mile/5280ft

C) 1 mile/5280ft=3/8 miles divided by x

D) 1 mile/5280ft=x/3 divided by 8ft

1mi = 5280feet

The first thing you should do in this case is to calculate the perimeter of the rectangle which will be given by:

P = 2 * L + 2 * W

Where

L = long

W = width

Calculating we have:

P = 2 * (1/4) + 2 * (1/8)

P = 1/2 + 1/4

P = 3/4 mi

To calculate this distance to feet we have to use the following expression:

(3/4) / (x) = 1/5280

answer:

B) 3/4 miles divided by x = 1 mile/5280ft