SOLUTION: Eva invested a certain amount of money at 7% interest and $1400 more than that amount at 12%. Her total yearly interest was $795. How much did she invest at each rate? at 7% $

Question 458865: Eva invested a certain amount of money at 7% interest and $1400 more than that amount at 12%. Her total yearly interest was $795. How much did she invest at each rate?
at 7% $______
at 12% $______

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Eva invested a certain amount of money at 7% interest and $1400 more than that amount at 12%. Her total yearly interest was $795. How much did she invest at each rate.
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Interest Eq: 0.07x + 0.12(x+1400) = 795
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Multiply thru by 100:
7x + 12x + 12*1400 = 79500
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19x = 62700
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x = $3300 (amt. invested at 7%)
---
1400+x = $4700 (amt. invested at 12%)
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Cheers,
Stan H.
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at 7% $______
at 12% $______

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