What was the percent increase in the population in South America from 1900 to
2000?
in 1900- 38,000,000
in 2000- 515,000,000
I was thinking that I need to divide 515,000,000 by 38,000,000 which is 13.55% but I am not sure.
subtract 38,000,000 from 515,000,000
To get
477,000,000 (See that's the increase)
Now divide 477,000,000 by 38,000,000
to get 12.55
Now move decimal to right 2 places to get 1255%
In other words the population rose by about 12 and one half times.
To calculate the percent increase in population in South America from 1900 to 2000, you first need to find the difference between the two population figures. In this case, you subtract the population of 1900 (38,000,000) from the population of 2000 (515,000,000) to get the increase, which is 477,000,000.
Next, you divide the increase (477,000,000) by the initial population (38,000,000). This gives you a ratio of 12.55, which represents how many times the population increased.
To convert this ratio into percentage form, you multiply it by 100. So, 12.55 multiplied by 100 is 1,255. Therefore, the percent increase in the population of South America from 1900 to 2000 is approximately 1,255%.
In other words, the population rose by about 12 and a half times over the course of a century.