Question #224034

Suppose each year 60 000 people move into Gauteng province, 85000 people move out, 32000 are born and 18000 die. Write a balance equation on the population in Gauteng province accumulated per year. (Let P denote people)

Expert's answer

number of population in year 0 = P

population that move into = 60,000

population that move out = 85,000

population born = 32,000

population that die = 18,000

Net change in population = "60,000 - 85,000 + 32,000 - 18,000= -11,000"

Therefore the population equation is;

"P_n = P_{n-1} - 11,000"

(where n is the year)

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