Calculations in Class

Right now I'm spending my class time (productively not listening to the teacher) calculating out how much money I'd have per month with lots of different variables. Testing it with 6500, 7000, 7500, and 8000 dollars to start with. Checking each of those with 7.0, 7.2, 7.4, 7.6, 7.8, and 8.0 SEK per dollar exchange rate. Then checking each of those with 5 months, 6 months, and 7 months before christmas. (that's if I leave for Sweden in June, July or August.) Then I'm testing 6 months, 7 months, 8 months, 9, 10, 11, and 12 months assuming I come back after christmas. Before Christmas calculations involve taking my starting cash in USD multiplying it by the exchange rate... then subtracting 11,500 (4000 for swedish classes, 7500 for plane ticket). I then divide that number by the number of months. For after christmas it is almost the same, but I subtract 19000 rather than 11500 from my starting amount before dividing by the number of months. That's to add in another ticket back to Sweden after Christmas. I've spent one class period working on it already. I'll work on it more during my econ class this afternoon.

Hopefully by this evening I'll know how long I can stay in Sweden at which exchange rates with how much starting cash. I can probably survive at an absolute minimum of 4000 SEK a month. Because I can get about 1000 SEK extra working at the nations. Of course all calculations assume that I have not gotten a real job. I've estimated high on plane tickets as well.

That was a lot of math I know, but see... I have too much time in class when I'm not paying attention to the teacher. If I stop doing something with my mind during the time I'll fall asleep and then I'll learn even less of what the teacher says... Not good!