SOLUTION: The world population in 1990 was approximately 5.4 billion. The population has been increasing at a rate of 1.6% per year. a) Write an equation to represent the world population a

Algebra ->  Exponential-and-logarithmic-functions -> SOLUTION: The world population in 1990 was approximately 5.4 billion. The population has been increasing at a rate of 1.6% per year. a) Write an equation to represent the world population a      Log On


   

Question 1130375: The world population in 1990 was approximately 5.4 billion. The population has been increasing at a rate of 1.6% per year.
a) Write an equation to represent the world population after x number of years.
b) What would the population be in 2005?
Thanks
Answer by josgarithmetic(39620) About Me  (Show Source):
You can put this solution on YOUR website!
x, number of years since 1990

y=a%2A1.016%5Ex
y=5.4%2A1.016%5Ex
-
y=5.4%2A1.016%5E15