document.write( "Question 712604: Tori invested $8000 in money market funds. Part was invested at 5% simple interest and the rest was invested at 7% simple interest. At the end of 1 year, Tori had earned $496 in interest. How much did she invest in each fund? \n" ); document.write( "
Algebra.Com's Answer #438068 by Menjax(62)![]() ![]() ![]() You can put this solution on YOUR website! x=funds in company a \n" ); document.write( "y=funds in company b \n" ); document.write( "x+y=8000 (equation 1) \n" ); document.write( "x+(5x/100)+y+(7y/100)=8496 \n" ); document.write( "105x+107y=849600 (equation 2) \n" ); document.write( "sub 1 into 2 \n" ); document.write( "105(8000-y)+107y=849600 \n" ); document.write( "840000-105y+107y=849600 \n" ); document.write( "2y=9600 \n" ); document.write( "--->y=4800 \n" ); document.write( "sub y into 1 \n" ); document.write( "x+4800=8000 \n" ); document.write( "--->x=3200 \n" ); document.write( ":) \n" ); document.write( " |