A wooden door stopper needs to be covered with stickers to match the door for a directing contest. If one package of stickers covers a surface area of 75 square centimeters, how many packages of stickers need to be purchased? (Find the closest number to the surface area of the door stopper. Stickers may only be purchase in whole packs.)
First, measure the surface area of the wooden door stopper that needs to be covered with stickers. Let's say the surface area is 80 square centimeters.
Next, divide the surface area of the door stopper by the surface area covered by one package of stickers:
80 square centimeters / 75 square centimeters = 1.0666...
Since we can only purchase stickers in whole packs, we will need to round up to the nearest whole number.
Therefore, you will need to purchase 2 packages of stickers to cover the wooden door stopper.