SOLUTION: Karen walsh has twice as much money invested at 5% simple interest as she does at 4%. If her yearly income from these two investments is $350, how much does she have invested at e
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Question 284705: Karen walsh has twice as much money invested at 5% simple interest as she does at 4%. If her yearly income from these two investments is $350, how much does she have invested at each rate. Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! let the amount invested at4% be x
The amount invested at 5%=2x
The interest obtained = 350 for 1/2 year or 700 per year
0.04x+0.05*2x= 700
0.04x+0.1x=700
0.14 x =700
x=700/0.14
x=5000 which is the amount invested at4%
2*5000 = 10000 is the amount invested at5%
