Proportional Reasoning

 It is that time of the week again!  After a few weeks off, we are back into our weekly "blog math" question routine.  It will be due on Tuesday January 12, 2016 at 8:10 AM.  Here it is:

To make yummy fruit punch, use 2 cups of grape juice for every 3 cups of apple juice.  If you already have 12 cups of apple juice, how many cups of grape juice will you need to make fruit punch?  Justify your answer.

Please make sure that you copy the question on a lined piece of binder paper, answer it using the steps of problem solving, and hand it in the IN BOX on or before the due date.