Question 839158:  you invested $29,000 in two accounts paying 3% and 8% annual interest, respectively. If you total the interest earned for the year was $1220, how much was invested at each rate? 
 Answer by stanbon(75887)      (Show Source): 
You can  put this solution on YOUR website!  you invested $29,000 in two accounts paying 3% and 8% annual interest, respectively. If you total the interest earned for the year was $1220, how much was invested at each rate? 
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Quantity: t + e = 29000 
Interest:3t +8e = 122000 
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Modify: 
3t + 3e = 3*29000 
3t + 8e = 122000 
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Subtract and solve for "e": 
5e = 35000 
e = $7000 (amt. invested at 8%) 
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t = 29000-7000 = $22000 (amt. invested at 3%) 
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Cheers, 
Stan H. 
 
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