SOLUTION: Emma invests $900 in one account and $1800 in an account paying 3 % higher interest. At the end of one year she had earned $135 in interest. At what rates did she invest? $900 i

Question 988841: Emma invests $900 in one account and $1800 in an account paying 3 % higher interest. At the end of one year she had earned $135 in interest. At what rates did she invest?
$900 invested at�%
$1800 invested at�%
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Emma invests $900 in one account and $1800 in an account paying 3 % higher interest. At the end of one year she had earned $135 in interest. At what rates did she invest?
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(x/100)(900) + [(x+3)/100]1800 = 135
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9x + 18x + 54 = 135
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27x = 81
x = 3
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$900 invested at 3%
$1800 invested at 6%
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Cheers,
Stan H.
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