SOLUTION: Karen walsh has twice as much money invested at 5% simple annual interest as she does at 4%. if her yearly income from these two investments is $350, how much does she have investe

Question 432404: Karen walsh has twice as much money invested at 5% simple annual interest as she does at 4%. if her yearly income from these two investments is $350, how much does she have invested at each interest rate?
Answer by mananth(16946) (Show Source): You can put this solution on YOUR website!
Part I 4.00% per annum------------- x
Part II 5.00% per annum------------y= 2x
Interest----- $350.00

4.00% x + 5.00% * 2 x = $350.00
0.04 x + 0.05 * 2 x = $350.00
0.04 x + 0.1 x = $350.00
0.14 x = $350.00
/ 0.14
x= $2,500.00 --- Part I
2x = $5,000.00 Part II

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