My cupcake recipe makes 12 cupcakes and requires 1 1/2 sticks of butter. I can only buy whole sticks of butter. How many whole sticks of butter must I buy to make 100 cupcakes?

13 sticks

Step-by-step explanation:

100/12=8 1/3

Tells us he needs to follow the recipe 8 times and third the ingredients the 9th time

8 1/3*1 1/2

25/3*3/2

75/6

Needs 12.5 Sticks of butter

Must buy 13 sticks of butter since you can't buy less or half a stick

13 sticks of butter