Question 107855: Stan invested $17,000, part at 18% and part at 4%.
If the total interest at the end of the year is $1,380, how much did he invest at each rate?
Found 2 solutions by checkley71, scott8148:
Answer by checkley71(8403)   (Show Source):
You can put this solution on YOUR website! .18X+.04(17,000-X)=1,380
.18X+680-.04X=1,380
.14X=1,380-680
.14X=700
X=700/.14
X=5,000 INVESTED @ 18%
17,000-5,000=12,000 INVESTED @ 4%.
PROOF
.18*5,000 +.04*12,000=1,380
900+480=1,380
1,380=1,380
Answer by scott8148(6628)  (Show Source):
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