document.write( "Question 211425: A pharmacist needs 60 oz of a 30% acid solution. He had available A which is 20% acid and B which is 50% acid. How many oz of each should be mixed to get the desired amount? \n" ); document.write( "
Algebra.Com's Answer #159791 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! A pharmacist needs 60 oz of a 30% acid solution. He had available A which is 20% acid and B which is 50% acid. How many oz of each should be mixed to get the desired amount? \n" ); document.write( "-------------- \n" ); document.write( "A + B = 60 (total of 60 oz) \n" ); document.write( "0.2A + 0.5B = 0.3*60 (total of acid in solutions) \n" ); document.write( "---------- \n" ); document.write( "B = 60-A \n" ); document.write( "2A + 5B = 180 \n" ); document.write( "2A + 5(60-A) = 180 \n" ); document.write( "2A + 300 - 5A = 180 \n" ); document.write( "-3A = -120 \n" ); document.write( "A = 40 oz \n" ); document.write( "B = 20 oz \n" ); document.write( " \n" ); document.write( " |