SOLUTION: The population of Canada is 30 million people and is growing at an annual rate of 1.4%. The population of Germany is 80 million people and is decreasing at an annual rate of 1.7%.

Question 23218: The population of Canada is 30 million people and is growing at an annual rate of 1.4%.
The population of Germany is 80 million people and is decreasing at an annual rate of 1.7%.
In how many years will the population of Canada be equal to the population of Germany?
(Use logarithms to solve the resulting equation and answer accurate to 2 decimal places.)
Answer by rapaljer(4671) (Show Source): You can put this solution on YOUR website!
WHAT A NEAT PROBLEM!! NICE!!

For Canada in millions
For Germany in millions

When will populations be equal?

Divide both sides by :

When you divide with the same base number, you subtract exponents:

Multiply both sides by

Take the ln of each side:

calculator accuracy
Rounds off to 31.64 years.

R^2 at SCC

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