Explanation:
in this problem we are going to assume that the vet purchased a total amount of 100ft fencing.
we know that the perimeter of a rectangle is given as
P=2w+2l
given data
width w= 6ft
Perimeter P= 100ft
length l=?
Substituting into the expression for the perimeter we have
100=2(6)+2l
100=12+2l
100-12=2l
88=2l
l=88/2l
l=44
Therefore if the perimeter is 100ft the length will be 44ft given that the width must be 6ft
Note: you can assume any value for the perimeter to arrive at a solution using the formula for perimeter