Question

Jessie is making a display board for the school show. The display board is a 9 foot by 9 foot square. If ribbon costs $2.00 per foot, how much will it cost to add a ribbon border around the entire display board?

Answer 1

$72

Step-by-step explanation:

The display board is 9 foot by 9 foot.

To add a ribbon border around the board, we first calculate the perimeter of the board.

`\begin{gathered} \text{Perimeter}=9+9+9+9 \\ =36\text{ foot} \end{gathered}`

If ribbon costs $2.00 per foot, the cost will be:

`\begin{gathered} \text{Cost}=36*2 \\ =\$72 \end{gathered}`

It will cost $72 to add a ribbon border around the entire display board.