Sari is creating a dog run space in her backyard. She has 40 feet of fencing to go around the outside, and she wants to make it rectangular with a width of 8 feet. What will the length be, in feet?(

Answer 1

The perimeter of a rectangle is given by the equation P=2l + 2w, where P is the perimeter, l is the length, and w is the width.

In this case, the perimeter of the dog run will be 40 feet, and the width is given as 8 feet.

Using the equation, we can rewrite it as 40 = 2l + 2(8).

Simplifying the equation, we get 40 = 2l + 16.

Subtracting 16 from both sides, we have 24 = 2l.

Dividing both sides by 2, we find that the length, l, is 12 feet.

Therefore, the length of the dog run will be 12 feet.