Malik is making coffee using a recipe that calls for 2 cups of milk for every 5 cups of coffee beans.

a. If he uses 5 cups of milk, how many cups of coffee beans should he use?

b. If he uses 17.4 cups of coffee beans, how many cups of milk should he use?

c. Write an equation that represents the relationship between cups of milk and cups of coffee beans. Be sure to define your variables:

d. What was the constant of proportionality in your equation above? Explain the meaning of the number.

You can choose which part you wanna do and you don’t have to do all.