Question 1130085: In 2000, the population of the United States was estimated to be 282 million people and in 2010 the estimate was 309 million people. If the population
of the United States grows exponentially,estimate the population in 2020.
Found 2 solutions by Boreal, MathTherapy:
Answer by Boreal(15235)   (Show Source):
You can put this solution on YOUR website! pop=Ab^t, where t is number of years after 2000
282=A, in millions.
309=282b^9
b^9=309/282=1.0957
b is the 9th root of that or 1.0102, rounding only at the end.
in 2020, using the last answer, pop=282(1.0102)^20, or 345.36 million. If I used the initial unrounded value, the result would be 345.54 million.
345 million.
Answer by MathTherapy(10552)  (Show Source):
You can put this solution on YOUR website!
In 2000, the population of the United States was estimated to be 282 million people and in 2010 the estimate was 309 million people. If the population
of the United States grows exponentially,estimate the population in 2020.
Correct answer: 
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