document.write( "Question 946257: Marta invested three times as much money in an account paying 6% interest than she did in an account paying 5% interest. If the total interest paid was $1,628.40, how much did she invest in each account? \n" ); document.write( "
Algebra.Com's Answer #577323 by ankor@dixie-net.com(22740)\"\" \"About 
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Marta invested three times as much money in an account paying 6% interest than she did in an account paying 5% interest.
\n" ); document.write( " If the total interest paid was $1,628.40, how much did she invest in each account?
\n" ); document.write( ":
\n" ); document.write( "let x = amt invested at 5%
\n" ); document.write( "then
\n" ); document.write( "3x = amt invested at 6%, (three times as much as invested at 5%)
\n" ); document.write( ":
\n" ); document.write( "5% int + 6% int = $1628.40
\n" ); document.write( ".05x + .06(3x) = 1628.40
\n" ); document.write( ".05x + .18x = 1628.40
\n" ); document.write( ".23x = 1628.40
\n" ); document.write( "x = .1628.4/.23
\n" ); document.write( "x = $7080 invested at 5%
\n" ); document.write( "then
\n" ); document.write( "3(7080) = $21,240 invested at 6%
\n" ); document.write( ":
\n" ); document.write( ":
\n" ); document.write( "Check this, find the interest from each account.
\n" ); document.write( ".05 * 7080 = $354.00
\n" ); document.write( ".60 *21240 = 1274.40
\n" ); document.write( "-------------------------
\n" ); document.write( "total int: $1628.40 \n" ); document.write( "
\n" );