SOLUTION: Suppose that the function P=12 +50 ln x represents the percentage of inbound e-mail in the US that is considered spam, where x is the number of years after 2001. Use this model

Algebra ->  Logarithm Solvers, Trainers and Word Problems -> SOLUTION: Suppose that the function P=12 +50 ln x represents the percentage of inbound e-mail in the US that is considered spam, where x is the number of years after 2001. Use this model       Log On


   

Question 116572: Suppose that the function P=12 +50 ln x represents the percentage of inbound e-mail in the US that is considered spam, where x is the number of years after 2001.
Use this model to approximate the year that the percent of spam will reach 90% provided that law enforcement regarding spammers does not change.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
P=12+%2B50+ln+x=90
50+ln+x=90-12
50+ln+x=78
ln+x=1.56
x=e%5E%281.56%29
x=4.76
That's approximately 4 years 9 months
From 2001, the year would be 2005.