document.write( "Question 1147225: 4.[5pts]Last year, Singh had $20,000 to invest. He invested some of it in an account that paid 7% simple interest per year, and heinvested the rest in an account that paid 6% simple interest per year. After one year, he received a total of $1280 in interest. How much did he invest in each account? \n" ); document.write( "

Algebra.Com's Answer #768534 by ikleyn(52786) $\"\"$ $\"About$

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document.write( "Let x be the amount in dollars invested at 7%.\r\n" );
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document.write( "Then the rest (10000-x) dollars is the investment at 6%.\r\n" );
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document.write( "total interest is the sum of partial interests\r\n" );
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document.write( "    0.07x + 0.06(20000-x) = 1280 dollars, \r\n" );
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document.write( "Do the rest on your own.\r\n" );
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