SOLUTION: In 2005, comsumers recieved, on average, 3253 spam messages. The volume of spam messages per consumer is decreasing exponentially with the exponential decay rate of 13.7% per year.

Question 328584: In 2005, comsumers recieved, on average, 3253 spam messages. The volume of spam messages per consumer is decreasing exponentially with the exponential decay rate of 13.7% per year. In what year, theoretically, will the average consumer receive 100 spam messages?
Answer by galactus(183) (Show Source): You can put this solution on YOUR website!
Since 2005 is the base year with 3253 messages, we have

Let A=100 and solve for t, then add that value to 2005.

years in the future.
2005+25.417=sometime in the year 2030.
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