Thread: Trig and exponentials

The population of town A is double that of town B but is decreasing at a rate of 5% per year. The population of town B is increasing by 5% per year.
a)In how many years will the population of town B be double the amount of town A?


please show all work and calculations. Thanks

Since A=2B, we can set up two equations, equate and solve for t.



Solve for t.