<PRE><B>Question 754768</B>
sue is going to invest some money at simple interest at the rate of 8%. how long will it take for the investment to double?
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A(t) = P(1+rt)
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Ans: (1+.08t) = 2
0.08t = 1
t = 1/0.08
t = 100/8
t = 12.5 years
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Cheers,
Stan H.

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