How to solve this word problem?

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Answer 1 · 2017-10-21T02:50:38

1200

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.

$2000 - 1400 = 600$ $2000 - 1400 = 600$ change in population

$5 - 2 = 3$ $5 - 2 = 3$ change in years.

$\frac{600}{3} = 200$ $600/3 = 200$ change per year.

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

$\frac{200}{1} \times 1 = 200$ $200/1 xx 1 = 200$ change in population

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