SOLUTION: Lucy has some money invested at 18% annual interest and three times as much invested at 12%. Her total annual income from the two investments is 2200pesos. How much was invested at

Question 150607This question is from textbook
: Lucy has some money invested at 18% annual interest and three times as much invested at 12%. Her total annual income from the two investments is 2200pesos. How much was invested at each rate? This question is from textbook

Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Let the amount invested at 18% =
Then the amount invested at 12% =

4074 pesos were invested @ 18% and 12,222 pesos were
invested @ 12%
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