I can’t necessarily draw a model, lol but I can try my best to type one.
12/(1/3)=12•(3/1)=36
Answer:

Step-by-step explanation:
Given

See attachment for chart
Required:
Lemons used in first 4 hours
First, we calculate the number of lemon sold in the first 4 hours.


Represent the number of cups of lemonades needed with x
So, we have:

and

Cross Multiply:


Make x the subject


cups
2 for $4 because if you take the dollar amount and divide it by the amount of packs you will get the lowest number.