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Hey guys

I need help can anyone tell me the compound nd simple interest formulas plz thanks alot :)

I also wanna know why is math so hard >:( its annyoing and can some one tell me the 6, 7, 8, 9 times tables :) thanks

 Nov 7, 2014

Best Answer 

 #1
avatar+23254 
+5

Simple interest formula:  I = P ·r·t

where:  P  =  Principal (amount invested)         r  =  rate (as a decimal)         t  =  time (years)

           I  =  interest earned (not the final amount; the final amount will be  P + I)

-----     the time is usually in years because the rate is usually a yearly rate     -----

Compound interest formula:        A  =  P(1 + r/n)^(n·t)

where:  P  =  Principal (beginning amount)         r  =  rate (as a decimal)          t  =  time (number of years)

            A  =  final amount (not just the interest earned)        n  =  number of compounding periods per year         

 Nov 7, 2014
 #1
avatar+23254 
+5
Best Answer

Simple interest formula:  I = P ·r·t

where:  P  =  Principal (amount invested)         r  =  rate (as a decimal)         t  =  time (years)

           I  =  interest earned (not the final amount; the final amount will be  P + I)

-----     the time is usually in years because the rate is usually a yearly rate     -----

Compound interest formula:        A  =  P(1 + r/n)^(n·t)

where:  P  =  Principal (beginning amount)         r  =  rate (as a decimal)          t  =  time (number of years)

            A  =  final amount (not just the interest earned)        n  =  number of compounding periods per year         

geno3141 Nov 7, 2014

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