document.write( "Question 1032562: george set up a trust fund for their children part of its earning 7% simple interest per year while the rest of his earning 4% simple interest per year . he placed $4000.00 in the trust fund . in one year the trust fund has earned $220.00 how much did they invest at each interest rate ? \n" ); document.write( "
Algebra.Com's Answer #648311 by jorel555(1290)![]() ![]() ![]() You can put this solution on YOUR website! Let x=amount invested at 7%; then the amount invested at 4% can be represented by 4000-x. Thus: \n" ); document.write( ".07x+.04(4000-x)=220 \n" ); document.write( "160+.03x=220 \n" ); document.write( ".03x=60 \n" ); document.write( "x=60/.03=$2000 \n" ); document.write( "4000-x=$2000 \n" ); document.write( "$2000 was invested in both accounts!!!!!!!! \n" ); document.write( " |