Question

The number of milligrams of a drug that remains in a patient’s system after t hours is given by the function A(t) = Iert. Juan was given 600 milligrams of medicine which leaves his bloodstream at a rate of 30%. How much of the medicine remains in his system after 6 hours?

150.62 mg

133.90 mg

111.58 mg

99.18 mg

Answer 1

\(A(t)=le^{rt}\) ?

Answer 2

sir??

Answer 3

is that what you wrote?

Answer 4

yes..

Answer 5

i'm sorry

Answer 6

in any case i assume it is at a rate of 30% per hour, so you can solve this by computing
\[600\times (.7)^6\]

Answer 7

ok i'm with you?

Answer 8

sure did you get the answer?

Answer 9

i got 49.412..?

Answer 10

hmm i don't get any of the above answers when i compute. not sure what is going on

Answer 11

oooh ok i see it. this is really not right, but i will go along with it in any case
they want you to compute
\[600e^{-.3\times 6}=600e^{-1.8}\]

Answer 12

rayford... thanks... btw im not a creeper u asked me first

Answer 13

looks like you get \(99.18\) rounded
http://www.wolframalpha.com/input/?i=600e^%28-1.8%29

Answer 14

huh...that's kinda weird?

Answer 15

but ok thanks man..