document.write( "Question 625907: A 10% alcohol solution is to be combined with a 40% alcohol solution to make 20 liters of a 25% alcohol solution. How many liters of each are needed? \n" ); document.write( "
Algebra.Com's Answer #393882 by lwsshak3(11628)\"\" \"About 
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A 10% alcohol solution is to be combined with a 40% alcohol solution to make 20 liters of a 25% alcohol solution. How many liters of each are needed?
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\n" ); document.write( "let x=amt of 10% solution needed
\n" ); document.write( "20-x=amt of 40% solution needed
\n" ); document.write( "..
\n" ); document.write( "10%x+40%(20-x)=25%*20
\n" ); document.write( ".10x+8-.4x=5
\n" ); document.write( "-.30x=-3
\n" ); document.write( "x=3/.3=10
\n" ); document.write( "20-x=10
\n" ); document.write( "amt of 10% solution needed=10 liters
\n" ); document.write( "amt of 40% solution needed=10 liters
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