SOLUTION: Summertime songbird population within the Mid-America flyway is predicted to increase over the next 8 years at the rate of 2% per year. If the songbird population is predicted to r

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Question 610200: Summertime songbird population within the Mid-America flyway is predicted to increase over the next 8 years at the rate of 2% per year. If the songbird population is predicted to reach 55 million in 8 years, how many songbirds are there today? Round up to the nearest million.
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
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Summertime songbird population within the Mid-America flyway is predicted to increase over the next 8 years at the rate of 2% per year.
If the songbird population is predicted to reach 55 million in 8 years, how many songbirds are there today?
Round up to the nearest million.
:
Let b = original no. of birds. (millions)
:
1.02^8 * b = 55
Find 1.02^8 with a calc
1.17166b = 55
b = 55%2F1.17166
b ~ 50 million