SOLUTION: Roberto invested some money at 7%, and then invested $2000 more than twice this amount at 10%. His total annual income from the two investments was $3980. How much was invested
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Question 42767: Roberto invested some money at 7%, and then invested $2000 more than twice this amount at 10%. His total annual income from the two investments was $3980. How much was invested at 10%? Answer by Nate(3500) (Show Source):
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