500*1.08y=800 (y being the number of years.)
1.08y=1.6
y*log(1.08)=log1.6 (base of log doesn't matter)
y=log(1.6)/log(1.08)
y=6.1 years
In this case you can't have 0.1 of a year so you round up.
so if you leave it in the bank for 7 years you will have over 800. (to be exact you will have 856.91)
if you had only left it for 6 you would have 793.44
5259.81
It will be worth 457.96
1136.23
556.34
730.43
5259.81
It will be worth 457.96
1136.23
If 1500 dollars is invested at an interest rate of 3.5 percent per year compounded continuously, after 3 years it's worth $1666.07, after 6 years it's $1850.52, and after 18 years it's worth $2816.42.
It will be worth 417.72, approx.
543.66
635.61
523.97
730.43
661.56
332.01
556.34