SOLUTION: Please help me with the problem below: The population of a Midwestern city follows exponential decay. If the population decreased from 900,000 to 800,000 people from 1993 to 199

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Question 954570: Please help me with the problem below:
The population of a Midwestern city follows exponential decay. If the population decreased from 900,000 to 800,000 people from 1993 to 1995, when will the populations be 500,000?
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
p=Ie%5E%28-kt%29
p, the population after time t.

The first part gives you enough to find k.
I=9
p=8
t=95-93=2

ln%28p%29=ln%28I%29-kt
ln%28p%29-ln%28I%29=-kt
k=%28ln%28I%29-ln%28p%29%29%2Ft
k=%28ln%28I%2Fp%29%29%2Ft-------the constant in a formula.

k=ln%289%2F8%29%2F2
highlight%28k=0.0589%29

Can you answer the "when 500000" question?