Question

Jasmine is making a display board for the
school talent show. The display board is
a 10 m by 6 m rectangle. If ribbon costs
4 per m, how much will it cost to add
a ribbon border around the entire display
board?​

Answer 1

The cost of ribbon is 128 used to border the display board.

Step-by-step explanation:

Given Dimension of the display board;

Length = 10 m

Breadth = 6 m

Cost of ribbon = $4/m$

We have to find out the cost of ribbon used for bordering the display board.

Solution,

Since the display board is in rectangle shape and Jasmine is bordering around the entire display  board.

So we will find out the perimeter of the display board.

Perimeter of display board = $2(length+breadth)$

On substituting the values, we get;

Perimeter of display board = $2(10+6)=2\times16=32\ m$

Now we use the unitary method to find out the cost of ribbon.

$\textrm{1 meter of ribbon costs} = 4\\\\\therefore \textrm{cost of 32 m of ribbon}=4\times32=128$

Hence The cost of ribbon is 128 used to border the display board.

Answer 2

Answer:

128

Step-by-step explanation:

check  it out