SOLUTION: A man invested one fifth of his money at 4%, half of his money at 5%, and the rest of his money at 3.5%. If his total annual investment income was $870, how much had he invested?
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Question 909867: A man invested one fifth of his money at 4%, half of his money at 5%, and the rest of his money at 3.5%. If his total annual investment income was $870, how much had he invested? Answer by ewatrrr(24785) (Show Source):
You can put this solution on YOUR website! x amount invested
Set Up... |Multiplying thru by 10 so as all denominators = 1
.08x + .25x + .035(18)x = 8700, Solve for x
x = 8700/.99, amount invested
