00:01
All right, so hello, in this question we're told that we have a drug leaving the body, and if we had an initial dose of 10 milligrams, then the amount at some time t, t hours after it was administered, is given by this formula here.
00:12
We're asked to estimate the amount of the drug that will be in the body eight hours after the initial dose.
00:18
So we just wanted the amount eight hours after the initial dose, so we'll go ahead and just plug in eight into this.
00:25
If we plug that into our calculator, we'll get a value of 1 .68, and this is going to be in milligrams.
00:34
That's just in the context of the question, that's where we find the units on this.
00:38
B says, what percentage of the drug is still in the body, or rather, what percentage of the drug still in the body is eliminated each hour? so we want to figure out how much of the drug is lost each hour, and so to do that we have our amount, we can look at our amount initially, minus the amount at one hour, divided by our initial amount...