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23 September, 16:55

The median age for a first marriage in the United States for women was 25.9 in 2009 and 26.1 in 2010. Use an exponential model to predict the median age for women in 2019, where x is the number of years since 2009.

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  1. 23 September, 17:00
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    29.1 Is the answer for 2009
  2. 23 September, 17:56
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    The ratio of growth is 26.1/25.9 = 261/259

    in x years the median age = 25.9 * (261/259) ^x

    in 2019 (after 10 years) = 25.9 * (261/259) ^10 = 27.97
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