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?(1 point)

Answer 1

To create a rectangular dog run space, you need 2 sides of length L and 2 sides of length W. In this case, Sari wants the width to be 8 feet.

The formula for the perimeter of a rectangle is given by P = 2(L + W), where L is the length and W is the width.

Since the perimeter of the dog run space is given as 40 feet, we can substitute these values:

40 = 2(L + 8)

Dividing both sides of the equation by 2:

20 = L + 8

Finally, subtracting 8 from both sides:

L = 12

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