Set up a proportion to predict the outcome of the given event. How many of the next 105 containers of ice cream sold should expect to be vanilla if the last 15

Question

Rest of the question: Set up a proportion to predict the outcome of the given event.
How many of the next 105 containers of ice cream sold should expect to be vanilla if the last 15 sales consisted of the following: 4 Vanilla, 3 Chocolate, 7 Cookies-n-Cream, and 1 Strawberry. 

 

A: 100

B: 28

C: 15

D: 72

Answer 1

4 Vanilla, 3 Chocolate, 7 Cookies-n-Cream, and 1 Strawberry. 

 

ratio of vanilla to total flavors is 4:15

 

x is to 105 as 4 is to 15

 

x/105 = 4/15

x = 4(105)/15

x = 28 of the next 105 sold could reasonably be expected to be vanilla