document.write( "Question 754162: Suppose $5,000 is divided into two bank accounts. One account pays 5% simple interest per year and the other pays 7% per year. After one year there is a total of $310 in interest between the two accounts. How much was invested into the bank account that pays 7% simple interest (rounded to the nearest cent)? \n" ); document.write( "
Algebra.Com's Answer #458852 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Suppose $5,000 is divided into two bank accounts. One account pays 5% simple interest per year and the other pays 7% per year. After one year there is a total of $310 in interest between the two accounts. How much was invested into the bank account that pays 7% simple interest (rounded to the nearest cent)?
\n" ); document.write( "----------
\n" ); document.write( "Equations:
\n" ); document.write( "x + y = 5000
\n" ); document.write( "5x + 7y = 31000
\n" ); document.write( "---------------------
\n" ); document.write( "Modify for elimination:
\n" ); document.write( "5x + 5y = 25000
\n" ); document.write( "5x + 7y = 31000
\n" ); document.write( "-----
\n" ); document.write( "Subtract and solve for \"y\":
\n" ); document.write( "2y = 6000
\n" ); document.write( "y = $3000 (amt. invested at 7%)
\n" ); document.write( "=================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "===============
\n" ); document.write( "
\n" );