Omar wants to create an outdoor rectangular kennel. The length will be three feet more than the width. Write and use an equation to find the length and the widt

Question

dth of the kennel if Omar had 54 feet of fencing 

Answer 1

54 = P = 2 * L + 2 * w, for width w and length L

 

But the length is 3 feet longer than the width, so L = w + 3

 

Subsituting

 

 54 = 2 * L + 2 * w 

 

      = 2 ( w + 3) + 2 * w

 

       = 2w + 6 + 2w

 

        4w + 6

 

54 = 4w + 6

48 = 4w

12 = w

 

So the width is 12, the length is 15.