(growth) the u. s. census estimated that the world population was 6 bil- lion in 1999, and it was increasing 212,000 per day. what is the annual growth rate? at this rate, what is the predicted population of the world in 2050?

Annual growth rate = 1.29% per year

Population in 2050 = 11.53 billion

Explanation:

Data provided in the question:

Population in 1999 = 6 billion = 6,000,000,000

Rate of increase in population = 212,000 per day

Now,

Number of days in a year = 365

Therefore,

Annual growth rate

= [ Growth rate per day × Number of days in a year ] ÷ initial population

= [ 212,000 × 365 ] ÷ 6,000,000,000

= 0.0129 per year

or

= 0.0129 × 100%

= 1.29% per year

Now,

2050 is 51 year from 1999

Population in 2050 = Population in 1999 × ( 1 + rate )ⁿ

= 6,000,000,000 × ( 1 + 0.0129 )⁵¹

= 11.53 billion

turnover

the amount of money taken by a business in a particular period.

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