Laurinburg is experiencing a population movement out of the city to the suburbs. Currently 85% of the total population live in the city with the remaining 15% living in the suburbs. It has been shown that each year 7% of the city residents move to the suburbs, while only 1% of the suburb population move back to the city. Assuming population remains constant for both, what percent of the total will remain in the city after 5 years. Express your answer rounded to hundredths of a percent.
A) 64.44%
B) 39.72%
C) 60.28%
D) 35.56%

Question

Quizplus · Accepted Answer

The problem can be solved using a system of equations to model the population movement. Initially, 85% of the population is in the city. Each year, 7% of city residents move to the suburbs, and 1% of suburb residents move to the city. After 5 years, the percentage of the population remaining in the city is approximately 60.28%.

Laurinburg Is Experiencing a Population Movement Out of the City