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(Solved): Use a variation model to solve for the unknown value. The amount of pollution entering the atmosphe ...
Use a variation model to solve for the unknown value. The amount of pollution entering the atmosphere varies directly as the number of people living in an area. If 100,000 people create 76,000 tons of pollutants, how many tons enter the atmosphere in a city with 770,000 people? In a city with 770,000 people, tons of pollutants enter the atmosphere.
Expert Answer
Let the amount of pollution entering the atmosphere is x tons and number of people living in the area is y.