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  3. in 1987 523000 people worked in the air transportation industry...

Question: in 1987 523000 people worked in the air transportation industry...

Question details

In 1987, 523,000 people worked in the air transportation industry. In 2003, the number was 477,000.

a) Find a linear equation giving the number of employees in the air transportation industry in terms of x, the number of years since 1987.

b) Assuming the equation remains valid in the future, in what year will there be 430,00 employees of the air transportation industry?

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