Question 1116093
 Katie invested a total of $4000, part at 4% simple interest and part at 5% simple interest. At the end of 1 year, the investments had earned $174 interest. How much was invested at each rate? 
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Quantity:: r + v = 4000
Interest:: 0.04r + 0.05v = 174
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Modify for elimination::
4r + 4v = 16000
4r + 5v = 17400
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Subtract and solve for "v"::
v = $1400 (amt. invested at 5%)
r = $3600 (amt. invested at 4%)
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Cheers,
Stan H.
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