document.write( "Question 386803: How many gallons of a 60% alcohol solution must be mixed with 60 gallons of a 15% solution to obtain a solution that is 50% alcohol? \n" ); document.write( "
Algebra.Com's Answer #275302 by robertb(5830)\"\" \"About 
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0.60x + 0.15*60 = 0.50(x + 60);
\n" ); document.write( "0.60x + 9 = 0.50x + 30;
\n" ); document.write( "0.10x = 21;
\n" ); document.write( "x = 210 gallons, the amount of 60% alcohol solution that must be added.
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