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Sagot :
if you want to made the triple then you want to have:
[tex]600\cdot3=1800[/tex]Now we can replace that in the interest equation so:
[tex]1800=600(1+6.3)^t[/tex]Where t are the number of years so we solve for t so:
[tex]\begin{gathered} \frac{1800}{600}=7.3^t \\ \ln (3)=t\ln (7.3) \\ t=\frac{\ln(3)}{\ln(7.3)} \\ t=\frac{1.10}{1.99} \\ t=0.55 \end{gathered}[/tex]so in 0.55 years he will have the triple of the money, and to the neasres whole number will be in one year
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