Respuesta :

Edufirst
This is compounded interest.

Formula:

Future value = Present value * ( 1 + %interest / 100) ^ t

Presente value = 110

% interest = 7.25%

t = ?

Future value = 6600

=> 6600 = 1100 ( 1 + 0.0725)^t

=> 6600 / 1100 = (1.0725)^ t

=> 6 = (1.0725)^t

=> t log(1.0725) = log(6)

=> t = log (6) / log (1.0725) = 25.59

=> answer = 26 years.

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