document.write( "Question 541136: how many gallons of 20% alcohol soultion and 50% alcohol soultion must be mixed together to get 9 gallons of 30% alcohol solution?
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Algebra.Com's Answer #354069 by mananth(16946)![]() ![]() You can put this solution on YOUR website! percent ---------------- quantity \n" ); document.write( "Alcohol I 20 ---------------- x gallons \n" ); document.write( "Alcohol II 50 ------ 9 - x gallons \n" ); document.write( "Mixture 30.00% ---------------- 9 \n" ); document.write( " \n" ); document.write( "20x+50( 9-x)=30*9 \n" ); document.write( " \n" ); document.write( "20x+450 -50x= 270 \n" ); document.write( "20x-50x =270-450 \n" ); document.write( "-30x=-180 \n" ); document.write( "/-30 \n" ); document.write( "x = 6 gallons 20.00% Alcohol I \n" ); document.write( " 3 gallons 50.00% Alcohol II \n" ); document.write( " \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |