Question

Dwayne walks a total of 960 feet around 3 sides of a square city block. Which

equation and solution show a correct way to find the perimeter, P, of the block?

Answer 1

3/4 P = 960

P = 960 • 4/3

P = 1,280

Explanation:

Answer 2

The perimeter is 1280ft

Explanation:

Let the side length of the square be s.

Then the distance around three sides is 3s.

According to the question the distance around 3 sides of a square city block is 960 feet.

This implies that:

`3s = 960`

`s = (960)/(3)`

`s = 320`

The perimeter of a square is

`p = 4s`

Substitute s=320 to get:

`p = 4(320)`

`p = 1280`

The perimeter is 1280 ft