00:01
Pino determine n when t equals 3 using this conditions.
00:05
Also using the equation for n of t, that is n of t equals c e power k t.
00:11
So first let's use this connection when t equal to 0 n equals 350.
00:16
So let's replace t equal to 0.
00:19
Therefore this becomes n of 0 equals c e power k times of 0.
00:26
When t equal to 0, n of 0 is 350.
00:29
So here i write 350 and this equals c times.
00:35
This is e raised to the power of 0 which is 1 and so this implies c equals 350.
00:43
We have now determined the value of c equals 350.
00:47
That means we can plug it into the n of t and rewrite this as n of t equals replace c by 350.
00:56
So it becomes 350 e raised to the power of kt.
00:59
Now we can use this equation.
01:02
Now let's use the other condition that is when t equal to 1, n equals 400.
01:08
So let's replace t by 1.
01:10
It becomes the n of 1.
01:12
This equals 350 times e raised to the power of k times of replace t by 1 becomes k times of 1.
01:21
Now n of 1 equals 400.
01:24
So i write 400 equals 350...