document.write( "Question 758194: A nurse has a solution that is 25% alcohol and another that is 50% alcohol. How much of each must he use to make 45 liters of a solution that is 40% alcohol? \n" ); document.write( "
Algebra.Com's Answer #461275 by stanbon(75887)\"\" \"About 
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A nurse has a solution that is 25% alcohol and another that is 50% alcohol. How much of each must he use to make 45 liters of a solution that is 40% alcohol?
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\n" ); document.write( "Equation:
\n" ); document.write( "alch + alch = alch
\n" ); document.write( "0.25x + 0.50(45-x) = 0.40*45
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\n" ); document.write( "25x + 50*45 - 50x = 40*45
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\n" ); document.write( "-25x = -10*45
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\n" ); document.write( "x = 18 liters (amt. of 25% solution needed)
\n" ); document.write( "45-x = 27 liters (amt. of 50% solution needed)
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