document.write( "Question 441789: Martin needs to mix some 40% alcohol solution with some 90% alcohol solution to obtain 15 liters of an 80% solution. How much of the 40% solution and how much of the 90% solution should he use?\r
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Algebra.Com's Answer #304822 by mananth(16946)![]() ![]() You can put this solution on YOUR website! percent ----------------quantity \n" ); document.write( "Alcohol 40 ----------------x \n" ); document.write( "Alcohol 90 ----------------15-x \n" ); document.write( "Total 80.00% ----------------15 \n" ); document.write( "40x+90(15-x)=80 *15 \n" ); document.write( " \n" ); document.write( "40x+1350-90x=1200 \n" ); document.write( "40x-90x =1200-1350 \n" ); document.write( "-50x=-150 \n" ); document.write( "/-50 \n" ); document.write( "x=3 liters 40.00% \n" ); document.write( "12 liters 90.00% \n" ); document.write( " |