document.write( "Question 248881: Mixture problem: how many liters of 10% solution and how many liters of 20% solution must be mixed to obtain 20 liters of a 17.5% solution? show equations and solve \n" ); document.write( "
Algebra.Com's Answer #181375 by nerdybill(7384)![]() ![]() You can put this solution on YOUR website! Mixture problem: how many liters of 10% solution and how many liters of 20% solution must be mixed to obtain 20 liters of a 17.5% solution? show equations and solve \n" ); document.write( ". \n" ); document.write( "Let x = liters of 10% solution \n" ); document.write( "then \n" ); document.write( "20-x = liters of 20% solution \n" ); document.write( ". \n" ); document.write( ".10x + .20(20-x) = .175(20) \n" ); document.write( ".10x + 4 - .20x = 3.5 \n" ); document.write( "4 - .10x = 3.5 \n" ); document.write( "-.10x = -.5 \n" ); document.write( "x = -.5/-.10 \n" ); document.write( "x = 5 liters (10% solution) \n" ); document.write( ". \n" ); document.write( "20% solution: \n" ); document.write( "20-x = 20-5 = 15 liters \n" ); document.write( " \n" ); document.write( " |