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OpenStudy (anonymous):
In 1989, a movie ticket cost $3.00. In 1999, a movie ticket cost $5.50. Find the average rate of change of movie ticket prices in dollars per year. A. $0.20 B. $0.25 C. $4.00 D. $0.85
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OpenStudy (anonymous):
new price-old price/newer year-older year
OpenStudy (anonymous):
5.5-3/1999-1989 = \[\frac{5.5-3}{1999-1989}\]
OpenStudy (anonymous):
\[\frac{2.5}{10}=.25\]
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