The city of Toronto’s population rose from 2,000,000 to 4,500,000 in the last twenty years of the twentieth
century. What was the annual average percentage increase in population for that period?
What's the answer for question number 18
To find the annual average percentage increase in population for that period, you need to follow these steps:
Step 1: Calculate the total population increase.
To find the total population increase, subtract the initial population from the final population:
Total population increase = Final population - Initial population
Total population increase = 4,500,000 - 2,000,000
Total population increase = 2,500,000
Step 2: Calculate the average annual population increase.
To find the average annual population increase, divide the total population increase by the number of years:
Average annual population increase = Total population increase / Number of years
In this case, the number of years is 20, as mentioned in the question.
Average annual population increase = 2,500,000 / 20
Average annual population increase = 125,000
Step 3: Calculate the average annual percentage increase.
To find the average annual percentage increase, divide the average annual population increase by the initial population and multiply by 100:
Average annual percentage increase = (Average annual population increase / Initial population) * 100
Average annual percentage increase = (125,000 / 2,000,000) * 100
Average annual percentage increase = 0.0625 * 100
Average annual percentage increase = 6.25
Therefore, the annual average percentage increase in population for that period is 6.25%.