You are making cookies and are missing a key ingredient— eggs. You have most of the other ingredients needed to make the cookies, except you have only 1.33 cups of butter and no eggs. You note that the recipe calls for two cups of butter and three eggs (plus the other ingredients) to make six dozen cookies. You call a friend and have him bring you some eggs.

a. What number of eggs do you need?

b. If you use all the butter (and get enough eggs), what number of cookies will you make?

Unfortunately, your friend hangs up before you tell him how many eggs you need. When he arrives, he has a surprise for you—to save time, he has broken them all in a bowl for you. You ask him how many he brought, and he replies, “I can’t remember.” You weigh the eggs and find that they weigh 62.1 g.

Assuming that an average egg weighs 34.21 g,

a. What quantity of butter is needed to react with all the eggs?

b. What number of cookies can you make?

c. Which will you have left over, eggs or butter?

d. What quantity is left over?