SOLUTION: I have not done algebra related questions in over 20-years and now I am lost!! The question is: How much would need to be invested at 3.25% annual simple interst to amount to $65

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: I have not done algebra related questions in over 20-years and now I am lost!! The question is:
How much would need to be invested at 3.25% annual simple interst to amount to $6510 in 5 years?
This question is from textbook

Answer by askmemath(368)   (Show Source): You can put this solution on YOUR website!
3.25% annual simple interst to amount to $6510 in 5
Let the principal amount = P
The interest on this let it be I
Given amount A after 5 years i.e A = 6510
or P+I = 6510
But I = (PTR)/100 where P = Prinicipal,T= Time and R = Rate
So I = PTR/100
I = (Px5x3.25)/100
20I = 3.25P
4I = .65 P
4(P+I) = 4x6510
4P +4I = 4x6510
4P +.65P = 4x6510
4.65P = 4x6510
I hope you can solve from here


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