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Mathematics 16 Online
OpenStudy (anonymous):

A $200 investment earns 8% annual simple interest for 3 years? How much is it worth in 3 years?

OpenStudy (anonymous):

i think you multiply them all.

OpenStudy (anonymous):

?

OpenStudy (anonymous):

multiply 200 8% and 3

OpenStudy (anonymous):

by what?

OpenStudy (anonymous):

i just do 200*.08*3?

OpenStudy (ganpat):

8% of 200 * 3.. so (0.08 * 200) * 3 = 48 $...

OpenStudy (anonymous):

Not quite. The formula is \[F=P+(P \times R \times n)\] Where F is future value, P is present value, R is the rate, and n is the number of periods. Does that help?

OpenStudy (anonymous):

No i'm more confused. Can u just tell me how to write it then i'll solve it?

OpenStudy (anonymous):

You're trying to find F, the future value. You know that the present value, P, is $200, the interest rate, R, is 8% and because it is an annual rate (every year), and it is over 3 years, n equals 3. Now, just plug those into the formula.

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