Question

"Assuming a current world population of 8 billion people, an annual growth rate of 1.8% per year, and a worst-case scenario of exponential growth, what will the world population be in 21 years? Round to two decimal places."

Answer 1

Answer:

The world population will be 11.64 billions in 21 years.

Step-by-step explanation:

Initial population = 8 billion

Growth rate = 1.8% per year =0.018

Time = 21 years

We are supposed to find what will the world population be in 21 years

Formula : $y = a (1+r)^t$

y = population after t years

r = rate of interest in decimals

t = time in years

Substitute the values :

$y =8(1+0.018)^{21}$

$y =11.635$

Hence the world population will be 11.64 billions in 21 years.