document.write( "Question 719586: How many liters of 80% alcohol solution must be added to 20 liters of 90% alcohol solution to produce 85% alcohol solution? \n" ); document.write( "
Algebra.Com's Answer #441394 by mananth(16946)![]() ![]() You can put this solution on YOUR website! -------------- percent ---------------- Amount \n" ); document.write( "Alcohol I 90 ---------------- 20 liters \n" ); document.write( "Alcohol II 80 ---------------- x liters \n" ); document.write( "Mixture 85 ---------------- 20 + x liters \n" ); document.write( " \n" ); document.write( "90 * 20 + 80 x = 85 ( 20 + x ) \n" ); document.write( "1800 + 80 x = 1700 + 85 x \n" ); document.write( "80 x -85 x = -1800 + 1700 \n" ); document.write( "-5 x = -100 \n" ); document.write( "/ -5 \n" ); document.write( "x = 20 liters Alcohol II \n" ); document.write( " \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |