document.write( "Question 669862: How many gallons of a 50% acid solution must be mixed with 40 gallons of a 19% solution to obtain a solution that is 40% acid? \n" ); document.write( "
Algebra.Com's Answer #416601 by mananth(16946)![]() ![]() You can put this solution on YOUR website! -------------- percent ---------------- Amount \n" ); document.write( "Acid solution I 19 ---------------- 40 gallons \n" ); document.write( "Acid solution II 50 ---------------- x gallons \n" ); document.write( "Mixture 40 ---------------- 40 + x gallons \n" ); document.write( " \n" ); document.write( "19*40+50x=40(40 +x) \n" ); document.write( "760+50 x = 1600 + 40 x \n" ); document.write( "50x-40 x=-760+ 1600 \n" ); document.write( "10 x = 840 \n" ); document.write( "/ 10 \n" ); document.write( "x = 84 gallons Acid solution II \n" ); document.write( " \n" ); document.write( "m.ananth@hotmail.ca \n" ); document.write( " \n" ); document.write( " |