SOLUTION: Doris invested some money at 6% and some money at 7%. She invested $6,000 more at 7% than she did at 6%. Her total yearly interest from the two investments was $680. How much did D
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Question 1184102: Doris invested some money at 6% and some money at 7%. She invested $6,000 more at 7% than she did at 6%. Her total yearly interest from the two investments was $680. How much did Doris invest at each rate? Answer by greenestamps(13200) (Show Source):
