document.write( "Question 900616: How much of a 40% alcohol solution must be mixed with 50 gallons of an 18% alcohol solution to obtain a solution that is 30% alcohol? \n" ); document.write( "
Algebra.Com's Answer #546071 by richwmiller(17219)\"\" \"About 
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0.4*x+0.18*50=0.3(50+x)
\n" ); document.write( "0.4*x+9=15+0.3x
\n" ); document.write( "0.4x-0.3x=15-9
\n" ); document.write( "0.1x=6
\n" ); document.write( "x=60 gallons of 40% alcohol solution
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\n" ); document.write( "0.4*60+0.18*50=0.3(50+60)
\n" ); document.write( "24+9=0.3(110)
\n" ); document.write( "33=33
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