aaaaaaaaaa (aaaaaaaaa)'s status on Wednesday, 01-Jun-11 16:07:29 UTC
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@carcinopony Also, if you're interested, we can add more to this to make it cooler and more useful/applicable. Now that you've figured out how to calculate your wealth from having a part time job, what if you want to spend money too? How much is safe to spend? Let's say that by the end of two months (your summer vacation), you want to have saved $1400. How much can you spend per week during those two months, and come out with exactly $1400? We already know from the previous part that for your wealth, y = 200x + 500. For two months, x=8. So, y = 200*8 +500, which gives y = $2100. $2100 - $1400 = $700. In other words, you can afford to spend $700 throughout your two months of summer vacation. How much is that per week? $700/8 = $87.50. Therefore, using only linear equations and basic math, you've budgeted for $87.50 per week. Hooray!
