11ピースのスライスチーズが入ったパッケージの価格は2.97ドルです。

18スライスのパッケージは、スライスあたり同じ価格でいくらかかりますか ？あなたの理由を説明または示してください。

$4.86

Step-by-step explanation:

The package of cheese that cost $2.97 has 11 slices. To know how much each slice costs, we need to divide $2.97 by 11.

That is $2.97/11 = $0.27 per slice

Now we need to calculate how much would cost a package of 18 slices with the same price per slice.

As we now know that each slice costs $0.27, we just need to multiply 18 by $0.27 to know the total price.

That is 18*$0.27 = $4.86

A package with 18 slices would cost $4.86.

8

step-by-step explanation: