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2 May, 23:09

A pine tree measured 40 and 1 over 2 feet tall. Over the next 7 and 1 over 2 years it grew to a height of 57 feet. During the 7 and 1 over 2 years, what was the average yearly growth rate of the height of the tree?

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  1. 2 May, 23:23
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    The height starts at 40.5 ft. Over 7.5 years, it grows to be 57.

    40.5 + 7.5g = 57 where g = annual growth rate

    7.5g = 16.5

    g = 2.2 ft/yr
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