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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?
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For the Canada population, the formula is
C(t) = , in millions.
For the Gremany population, the formula is
G(t) = , in millions.
t is the time in years from now.
The populatins are equal when V(t) = G(t), or
= .
It implies
= ,
or
0.375 = .
Take log base 10 of both sides
log(0.375) = t*log(0.969428008),
t = = use your calculator = 31.58965618
Round to the closest integer to get the
ANSWER. Approximately in 32 years.
Solved.
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- A medication decay in a human's body
- Problems on appreciated/depreciated values
- Inflation and Salary problems
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