SOLUTION: a total of 11,000 was invested. part of the 11,000 was invested at 4%, and the rest was invested at 7%. if the investments earn $680 per year,how much was invested at each rate?
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Question 1124576: a total of 11,000 was invested. part of the 11,000 was invested at 4%, and the rest was invested at 7%. if the investments earn $680 per year,how much was invested at each rate?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
x at 4%
11000-x at 7%
.04x+.07(11000-x)=680
.04x+770-.07x=680
-.03x=-90
x=3000@4% or $120
11000-x=8000@7%= $560
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