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OpenStudy (anonymous):
Sales at a certain department store follow the model y=85-13.254x where y is the total sales in thousands of dollars and x is the number of years after 2001. What was the first year that sales fell below $50,000?
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OpenStudy (gorv):
sale = 50000
OpenStudy (gorv):
50000=85-13.254*x
OpenStudy (gorv):
subtracting 85 fromboth side
OpenStudy (gorv):
49915=-13.254x x=-49915/13.254
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