Problema Solution
Tacoma's population in 2000 was about 200,000 and has been growing by about 9% each year. If this continues, what will Tacoma's population be in 2013?
Answer provided by our tutors
In 2000 the population was: 200,000
In 2001 the population was: 200,000 + 0.09*200,000 = 200,000*1.09
In 2002 the population was: 200,000*1.09 + 200,000*1.09*0.09 = 200,000*1.09^2
....
In 2013 the population was: 200,000*1.09^13 = 654,000