Suppose a city with population 100,000 has been growing at a rate of ​7% per year. If this rate​ continues, find the population of this city in 15 years.

Answer 1

100000e^.07(15)

=100000e^1.05

= about 285,765

or

100000(1.07)^15

=275,903

but since the initial population appeared possibly rounded to nearest thousand

maybe call the populatiion in 15 years 286,000 or 276,000

286,000 is for a population continually growing, with births exceeding death or net immigrants>emigrants

276,000 is for a one time annual increase each year, which seems far less realistic

or if rounded to nearest 100,000

then in 15 years the population would be 300,000, regardless of the growth model