document.write( "Question 142019: A total of $8000 is invested , part at 3% and the rest at 4% per year. If the annual return on theses investments is $275, how much is invested at each rate? \n" ); document.write( "
Algebra.Com's Answer #103449 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! .04x+.03(8000-x)=275 \n" ); document.write( ".04x+240-.03x=275 \n" ); document.write( ".01x=275-240 \n" ); document.write( ".01x=35 \n" ); document.write( "x=35/.01 \n" ); document.write( "x=3500 invested @ 4% \n" ); document.write( "8000-3500=4500 invested @ 3% \n" ); document.write( "proof: \n" ); document.write( ".04*3500+.03*4500=275 \n" ); document.write( "140+135=275 \n" ); document.write( "275=275 \n" ); document.write( " |