document.write( "Question 913394: Dylan has $16000 invested in two accounts; one account pays 7.5% and the other pays 6.5% interest. If he received $1126 in interest in one year, how much does he have interested in each account? \n" ); document.write( "
Algebra.Com's Answer #554482 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! Total amount of money invested: $16000 \n" ); document.write( "x+y=16000, \n" ); document.write( "Total yearly interest for the two accounts is: $1126 \n" ); document.write( "0.075*x+0.065*y=1126 \n" ); document.write( "x=16000-y \n" ); document.write( "Substitute for x \n" ); document.write( "0.075*(16000-y)+0.065*y=1126 \n" ); document.write( "Multiply out \n" ); document.write( "1200.0-0.075*y+0.065*y=1126 \n" ); document.write( "Combine like terms. \n" ); document.write( "-0.01*y=-74.0 \n" ); document.write( "Isolate y \n" ); document.write( "y=$7400.00 at 6.5% earns $481.00 interest \n" ); document.write( "x=16000-y \n" ); document.write( "Calculate x \n" ); document.write( "x=$8600.00 at 7.5% earns $645.00 interest \n" ); document.write( "Check \n" ); document.write( "0.075*8600+0.065*7400=1126 \n" ); document.write( "645.0+481.0=1126 \n" ); document.write( "1126.0=1126 \n" ); document.write( "If 1126.0=1126 is TRUE and neither x nor y is negative then all is well \n" ); document.write( "codeint1 \n" ); document.write( " \n" ); document.write( " |