document.write( "Question 433981: 10 gallons of a 15.0% alcohol solution are to be mixed with a 28.0% alcohol solution to make a 20.0% alcohol solution. How many gallons of a 28.0% alcohol must be used? How many gallons of a 20.0% alcohol solution are made? \n" ); document.write( "
Algebra.Com's Answer #300754 by mananth(16946)\"\" \"About 
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------ Percent ---------------- quantity
\n" ); document.write( "Alcohol 15 ----------------10
\n" ); document.write( "Alcohol II 28----------------x
\n" ); document.write( "Total 20 ----------------10+x
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\n" ); document.write( "15*10+28*x=20(10+x)
\n" ); document.write( "150+28x =200+20 x
\n" ); document.write( "28 x - 20 x = 200 - 150
\n" ); document.write( "8x=50
\n" ); document.write( "/8
\n" ); document.write( "x=6.25 gallons 28% Alcohol II
\n" ); document.write( "Balance 13.75 gallons 15% alcohol
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