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Mathematics 13 Online
OpenStudy (anonymous):

The average price for a movie ticket in 1980 was $2.70. Estimate the cost of a movie ticket in 1995, using the Consumer Price Index of 82.4 in 1980 and 152.4 in 1995.

OpenStudy (anonymous):

use a ratio to solve this problem.\[\frac{ index value 1995 }{ index value1980}=\frac{ price1995 }{ price1980 }\]

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