SOLUTION: Peter has half of his investments in stock paying an 8% dividend and the other half in a stock paying 15% interest. If his total annual interest is $690, how much does he have inve

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Question 1198460: Peter has half of his investments in stock paying an 8% dividend and the other half in a stock paying 15% interest. If his total annual interest is $690, how much does he have invested?
Answer by greenestamps(13200)   (Show Source): You can put this solution on YOUR website!


If he has equal amounts returning 8% and 15%, then his average return is (8+15)/2 = 11.5%.

The amount of his return on his investment of $x is $690:




ANSWER: $6000

Formal algebra, if required....

x = total invested, so 0.5x returning 8% and 0.5x returning 15%:







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