You are fencing a rectangular puppy kennel with 26 feet of fence. The side of the kennel against the house does not need a fence, this side is 9 feet long. Find the missing length of the kennel.

Step-by-step explanation:

Given that,

Total length of the fence is 26 feet

The side of the house that does not need a fence is 9 feet long.

We need to find the missing length of the kenel.

26 feet is the perimeter of the kennel. Perimeter is the sum of all sides of a rectangle.

P = l+b+l+b

P=2b+l (because side of the kennel against the house does not need a fence

So,

26=2b+9

2b=17

⇒ b = 8.5 feet

l = 9 feet

So, the missing length of the kennel is 9 feet.