document.write( "Question 939627: How many liters of a 20% alcohol should be added to an 80% alcohol solution to obtain 15 liters of a 60% alcohol solution? \n" ); document.write( "
Algebra.Com's Answer #572637 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! How many liters of a 20% alcohol should be added to an 80% alcohol solution to obtain 15 liters of a 60% alcohol solution? \n" ); document.write( "------ \n" ); document.write( "Equation:: \n" ); document.write( "alch + alch = alch \n" ); document.write( "---- \n" ); document.write( "0.20x + 0.80(15-x) = 0.60*15 \n" ); document.write( "----- \n" ); document.write( "20x + 80*15 - 80x = 60*15 \n" ); document.write( "-60x = -20*15 \n" ); document.write( "x = (1/3)15 \n" ); document.write( "x = 5 liters (amt. of 20% solution needed) \n" ); document.write( "------------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "----------------- \n" ); document.write( " |