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okay so basically
we keep losing 1/2 ever 30 seconds
i found the 'r' by doing ln2/30
wait i have to figure it out too
then we multiply 30*n to see how many seconds
okay let me see how to explain this
oohhh wait wait i think i know what you mean
you start with 1 mg
i mean, 1 "sample" of it, right?
okay, and howd you get the (1/2)?
okay so forget like the 30 secs to begin with i mean remember it but we really wanna see how many half lives have passed we just know 1 half live is 30 seconds keep that in mind
basically like this, now you know that for every half life we multiply by a 1/2
okay that makes sense
so how would we incorporate that into the formula?
every 30 secs u want a new half lige so
i believe this works
let me thing hmm
i dont know if that helps any
gimme a few mins, i am dealing with someone here
yeah dont worry ill help u understand this stuff its pretty simple
actually i think i figured it out!
i want to show u something important first
are you there
crap, nvm i got it wrong
okay remember the (1/2)^n formula
now lets tweak that a little bit okay we know that for evert 30 secs we want it to be halved so
now u see every 30 secs we would exactly half it
the equation they give u is this just in disguise
that makes sense
like for example
if we apply e^ln(x) = x e and ln cancel out right
lets apply to that equation we know has to be right
do you know your ln rules like ln(x^3)= 3 ln x the power multiples
oh wait, dont you bring it to the rfont of the ln?
with a little bit of manipulation we see that the equation is exactly reuivalent
there is only 1 rule im applying here over and over
yes i do remember those
okay go ahead fill it all in now
yes that is correct
i got 79.33, is that right?
i am not using a calculator make sure u round it to the 10th
its correct :) thank you again so much, youre awesome!
okay you're welcome :)