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barxatty [35]
3 years ago
8

In 2003, the population of a city is 80,000 people, and is growing at a rate of 4% per year.

Mathematics
1 answer:
schepotkina [342]3 years ago
4 0
In thousands, the population can be modeled by
  P = 80*1.04^(t-2003)
where t is the year number

Finding answers to the questions can be done graphically.

a) In 2015, the population will be about 128,083.

b) The population will be 240,000 in 2031.


_____
a) p = 80,000*1.04^12
b) t = 2003+log(3)/log(1.04)

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