Question

A recipe calls for of a cup of milk for 10 cookies. how many cups of milk are needed to make 60 cookies?

a. 5
b. 4
c. 40
d. 20

Answer 1

Set this up as a proportion with cups of milk on top and number of cookies on the bottom.
`(m)/(c): (1)/(10)= (x)/(60)`. Cross multiply to get 10x = 60 and x = 6. That means it takes 6 cups of milk to make 60 cookies.