How to solve this word problem?

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1 Answer
Oct 21, 2017

1200

Explanation:

Look for the pattern. The change from per year from year five to year two is 200 per year,

The change in population is 600. The change in years is 3 years.
Dividing 600 by 3 equals 200 per year.

# 2000 - 1400 = 600# change in population

# 5 - 2 = 3 # change in years.

# 600/3 = 200# change per year.

From year two to year one is a change of one year.

# 200/1 xx 1 = 200 # change in population

# 1400 -200 = 1200# the population one year ago.