The amount invested in the lower interest account of 6% is $3,000
What is the interest on each account?
The interest on each account can be determined as the amount invested in the account multiplied by the interest rate earned by the account
Amount invested in the lower interest is X(assumed), as a result, the interest earned on the lower interest rate account is X multiplied by 6%
interest on lower interest account=0.06X
The balance remaining after having invested X in lower interest account is $10,000-X
interest on higher interest account=9%*($10,000-X)
interest on higher interest account=900-0.09X
total interest=0.06X+900-0.09X
total interest=$810
810=0.06X+900-0.09X
810=900-0.03X
0.03X=900-810
0.03X=90
X=90/0.03
X= LOWER interest account amount=$3,000
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