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Mathematics 10 Online
OpenStudy (anonymous):

If a man earns $420 interest in one year at 7%, what was the amount of money invested? $29.40 $60.00 $600.00 $6,000.00 D???

OpenStudy (anonymous):

How it compounds, do you know?

OpenStudy (anonymous):

i=r*t*p.......i think interset rate time principal

OpenStudy (anonymous):

$6000.00

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

I used "Pert" formula: \[P e^{rt}\]

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