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

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): You can put this solution on YOUR website!

x = amount invested at 6%
x+6000 = amount invested at 7%

Total interest was $680:

I personally would multiply by 100 to get rid of the decimals...

You can finish from there....

(final answers: $2000 at 6%, $8000 at 7%)

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