Answer: the population after 20 years would be 2787593
Step-by-step explanation:
Their population increases by 28%
each year. This is an exponential growth. The formula for determining exponential growth is expressed as
A = P(1 + r/n)^nt
Where
P represents the initial population.
r represents the rate at which the population is growing.
n represents the number of period that the population is increasing.
A represents the total population after t years.
From the information given,
r = 28% = 28/100 = 0.28
t = 20 years
P = 20000
Therefore,
A = 20000(1 + 0.28/1)^1 × 20
A = 20000(1.28)^20
A = 2787593
