Chloe
Reputation
Next privilege 250 Rep.
 Sep24 awarded Scholar Sep24 accepted How much caffeine is left in your system? Sep22 comment How much caffeine is left in your system? Ok, I believe you have made a fraction addition mistake on your first part. That is x * (.99 / .93) = 1.06 * x. So you are saying after only one week, you have accumulated MORE caffeine in your system than the full amount of one day? Yes it is cumulative but not to that degree. Sep22 awarded Editor Sep22 revised How much caffeine is left in your system? 1/2 life source Sep22 comment How much caffeine is left in your system? @copper.hat Lol! I actually don't like coffee, so that's why I used 'caffeine'. Sep22 comment How much caffeine is left in your system? I'm sorry, but both would appear incorrect. Why are you dividing by 700? For one day, you can do it in your head and see that 6.25% is left in your system (100% > 50% > 12.5% > 6.25%). That is 6.25mg, which shows your 2nd part is incorrect as well. Sep22 awarded Critic Sep22 awarded Student Sep22 comment How much caffeine is left in your system? @nbubis ? It's not homework. I just made it up. Sep22 comment How much caffeine is left in your system? I'm sorry but the first part is incorrect. I assume you are using 'x' for the quantity instead of the # of days, but still, the end result, 16^8, is an enormous sum. Sep22 asked How much caffeine is left in your system? May3 awarded Supporter Feb12 comment What exactly are eigen-things? Salman Khan should do a screencast on eigen vectors. Sep29 awarded Teacher Sep29 answered What is $x^y$? How to understand it?