SOLUTION: Katie invested a total of $6000 part at 2% simple interests and a part at 3% simple interest s. At the end of 1 year, the investments had earned $152 interest. How much was investe

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Question 1093309: Katie invested a total of $6000 part at 2% simple interests and a part at 3% simple interest s. At the end of 1 year, the investments had earned $152 interest. How much was invested at each rate?
Answer by Boreal(15235) About Me  (Show Source):
You can put this solution on YOUR website!
x at 2%=.02x
6000-x at 3%=180-.03x
their sum, -.01x+180=152
-.01x=-28
x=$2800@2%=$56
6000-x=$3200@3%=$96
That sum is $152.