document.write( "Question 532306: An investor has a total $18,000 deposited in three different accounts, which earn annual interest of 9%, 7%, and 5%. The account deposited in the 9% account is twice the amount in the 5% account. If the three accounts earn total annual interest of $1340, how much money is deposited in each account? \n" ); document.write( "

Algebra.Com's Answer #350791 by stanbon(75887) $\"\"$ $\"About$

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An investor has a total $18,000 deposited in three different accounts, which earn annual interest of 9%, 7%, and 5%. The account deposited in the 9% account is twice the amount in the 5% account. If the three accounts earn total annual interest of $1340, how much money is deposited in each account?
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\n" ); document.write( "Quantity Eq:: n + s + f = 18000
\n" ); document.write( "Quantiy Eq: n = 2f
\n" ); document.write( "Interest Eq: 9n+7s+5f = 134000
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\n" ); document.write( " n + s + f = 18000
\n" ); document.write( " n + 0 - 2f = 0
\n" ); document.write( "9n +7s + 5f = 134000
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\n" ); document.write( "Use any method you know to find:
\n" ); document.write( "n = 9% investment = $8000
\n" ); document.write( "s = 7% investment = $6000
\n" ); document.write( "f = 5% investment = $4000
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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