Solve.
-The population of a town increased by 80 % in 5 years. If the population is currently 40,000 , find the population of this town 5 years ago. (Round to the nearest whole, if necessary.)
A) 8000
B) 50,000
C) 32,000
D) 22,222

Question

Solve.
-The population of a town increased by  80 %  in 5 years. If the population is currently 40,000 , find the population of this town 5 years ago. (Round to the nearest whole, if necessary.)
A) 8000
B) 50,000
C) 32,000
D) 22,222

Quizplus · Accepted Answer

To find the population 5 years ago, let the initial population be P. After a 80% increase, the population becomes P + 0.8P = 1.8P. Given that 1.8P = 40,000, solving for P gives P = 40,000 / 1.8 = 22,222.22, which rounds to 22,222.

Solve. -The Population of a Town Increased by 80