document.write( "Question 365356: How much pure alcohol must be added to 50 gallons of gasohol that is 10% alcohol to make gasohol that is 20% alcohol? \n" ); document.write( "
Algebra.Com's Answer #260515 by mananth(16946)\"\" \"About 
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How much pure alcohol must be added to 50 gallons of gasohol that is 10% alcohol to make gasohol that is 20% alcohol?
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\n" ); document.write( "pure alcohol ------------100%---------x gallons
\n" ); document.write( "solution ----------------10%----------50 gallons of gasohol
\n" ); document.write( " gasohol---------------- 20%-----------x+50 gallons
\n" ); document.write( "..
\n" ); document.write( "x*1+50*0.1=(x+50)*0.2
\n" ); document.write( "multiply by 10
\n" ); document.write( "10x+50=2(x+50)
\n" ); document.write( "10x+50=2x+100
\n" ); document.write( "8x=50
\n" ); document.write( "/8
\n" ); document.write( "x= 50/8
\n" ); document.write( "x= 6.25 gallons of pure alcohol.
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\n" ); document.write( "m.ananth@hotmail.ca
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