"...each year between these two years"
Two years? Time between 1960 and 1999 is 39 years
Going with that data ....
6000 = 3000(1+r)^39
2 = (1+r)^39 , so it doubled in 39 years
take 39th root of both sides:
2^(1/39) = 1+r
1.01793 = 1+r
r = .01793 or appr 1.793% / year
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In 1960, there were approximately 3,000 million people living on earth. In 1999, the population of earth was approximately 6,000 million people. What was the approximate rate of increase, in millions of people, each year between these two years
1 answer
1 answer