document.write( "Question 645445: How many gallons of 20% alcohol solution must be mixed with 10 gallons of a 50% alcohol solution to obtain a 30% alcohol solution? \n" ); document.write( "

Algebra.Com's Answer #405462 by sachi(548) $\"\"$ $\"About$

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let x gl of 20% alcohol solution must be mixed with 10 gallons of a 50% alcohol solution to obtain a 30% alcohol solution
\n" ); document.write( "so 20x/100+10*50/100=(x+10)*30/100
\n" ); document.write( "or 20x+500=30(x+10)=30x+300
\n" ); document.write( "or 10x=200
\n" ); document.write( "or x=20 gallons
\n" ); document.write( "ans \n" ); document.write( "

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