Jake makes a drink that is 2 parts Coke, 1 part Sprite and 3 parts Mountain Dew.  If the drink contains 6 ounces of Coke, how many ounces is the drink?
The drink is 2+1+3=<<2+1+3=6>>6 parts
The drink is 2/6=1/3 coke
So the drink is 6/(1/3)=<<6/(1/3)=18>>18 ounces
#### 18