document.write( "Question 472734: How many liters of 20% alcohol solution should be added to 40 liters of a 50% alcohol solution to make a 30% solution? \n" ); document.write( "
Algebra.Com's Answer #324077 by monika_p(71)![]() ![]() ![]() You can put this solution on YOUR website! x- liters of 20% alc. solution \n" ); document.write( "(x+40) - total liters of 30% solution \n" ); document.write( " x*20%+40*50%=(x+40)*30% \n" ); document.write( "0.2x+40*0.5=(x+40)*0.3 \n" ); document.write( "0.2x+20=0.3x+12 \n" ); document.write( "0.1x=8 \n" ); document.write( "x=80 \n" ); document.write( "You have to add 80 liters of 20% alc. solution \n" ); document.write( " |