document.write( "Question 1027601: Marie invested $12,000 in two different simple interest accounts. She invested part of the money at 8% and the rest at 6%. How much was invested at each amount, if the total interest earned was $872? State what x represents, state the equation, and then state the answer. \n" ); document.write( "
Algebra.Com's Answer #642847 by fractalier(6550) You can put this solution on YOUR website! Let x be the amount invested at 8%. Thus 12000-x would be the amount invested at 6%. The setup looks like this: \n" ); document.write( ".08x + .06(12000-x) = 872 \n" ); document.write( "Now solve for x. \n" ); document.write( ".08x + 720 - .06x = 872 \n" ); document.write( ".02x + 720 = 872 \n" ); document.write( ".02x = 152 \n" ); document.write( "x = $7600 invested at 8% \n" ); document.write( "12000-x = $4400 invested at 6% \n" ); document.write( " |