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)\"\" \"About 
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How many liters of a 40% alcohol solution must be mixed with a 60 L of a 80% solution to get a 50% solution?
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\n" ); document.write( "Equation:
\n" ); document.write( "alco + alco = alco
\n" ); document.write( "0.80*60 + 0.40x = 0.50(60+x)
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\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)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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