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3 years ago

12

Using the formula a=p(1+r/n)^nt find how long it takes an investment to double if it is invested at 8% interest compounded month

ly

1 answer:

avanturin [10]3 years ago

8 0

2=(1+.08/12)^12t
2=(1.006666666666667)^12t
ln 2=ln (1.00666666666667)^12t=12t ln(1.00666666666667)
104.31826687071655449132631504323=12t
t=8.7 years

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