highland has a population of 12,200. Its population been increasing at a rate of 300 poeple per year. Lowville has a population
of 21,000 and is declining by 250 people per year. Assuming the rates don't change, in how many years will the populations be equal
1 answer:
Answer:
Step-by-step explanation:
<u>Equation for the Highland population</u>
<u>Equation for the Lowville population</u>
<u>Populations are equal after</u>
- 12200 + 300x = 21000 - 250x
- 300x + 250x = 21000 - 12200
- 550x = 8800
- x = 8800/550
- x = 16 years
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