Question

Dakota's living room is 7 meters wide and 7 meters long. She wants to put a border around

the top of the room. The cost of the border is $5.00 per meter. How much will it cost to buy
enough of the border to go around the room?

Answer 1

$140

Explanation:

The question talks about wanting to put a border. So that is to put borders on the perimeter.

So we will have to find the perimeter.

`perimeter = 2(l + w)`

`p = 2(7 + 7) \\ p = 2 * 14 \\ p = 28 \: metres`

Now we will have to multiply the cost per meter by the perimeter.

`total \: cost = 5 * 14 \\ = 140 \: dollars`