The Population of a town increased by 80% in 5 years. If the population is currently 18,000, find the population of this town 5 years agao. (Round to the nearest whole, if necessary).

please send formula of this equation

3 answers

Let x = the original population of the town.

1.8x = 18,000
Let X be the population 5 years ago.
X*(1.8) = 18,000
X = 10,000
Where does the 1.8x come from? Can you break that down?