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Assume the world catch of fish in 1950 was 12 million tons and in 1955 it was 96 million tons.  Find the average rate of change from 1950 to 1995.

 Jan 19, 2020
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It changed    96-12 = 84 million tons in 5 years of increase   (   51   52   53   54   55   )

    84/5 =16.8 million tons a year increase

 

 

 

The second part of your question has different dates    1950 to 1995  is 45 years of increase

 

84/45 = 1.867 million tons/yr increase average

 Jan 19, 2020

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