document.write( "Question 406204: How many liters of a 40% alcohol solution must be mixed with a 60 L of a 80% solution to get a 50% solution? \n" ); document.write( "
Algebra.Com's Answer #286718 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! How many liters of a 40% alcohol solution must be mixed with a 60 L of a 80% solution to get a 50% solution? \n" ); document.write( "--------------------- \n" ); document.write( "Equation: \n" ); document.write( "alco + alco = alco \n" ); document.write( "0.80*60 + 0.40x = 0.50(60+x) \n" ); document.write( "--- \n" ); document.write( "Multiply by 100 and solve for \"x\": \n" ); document.write( "80*60 + 40x = 50*60 + 50x \n" ); document.write( "-10x = -30*60 \n" ); document.write( "x = (1/3)*60 \n" ); document.write( "x = 20L (amt. of 40% solution needed) \n" ); document.write( "========================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "============== \n" ); document.write( " |