document.write( "Question 70908: A chemist has a solution that is 20% peroxide and another solution that is 70% peroxide. She wishes to take 100 L of a solution that is 35% of peroxide. How much of each solution should she use? \n" ); document.write( "
Algebra.Com's Answer #50651 by mathmaven53(29)![]() ![]() ![]() You can put this solution on YOUR website! Let x be amount of 20% peroxide solution \n" ); document.write( "The amount of peroxide is .2x \n" ); document.write( "100-x is the amount of 70% peroxide solution \n" ); document.write( "This contains .7(100-x) peroxide\r \n" ); document.write( "\n" ); document.write( "The amount of peroxide of these solutions combines to a total of\r \n" ); document.write( "\n" ); document.write( " .2x + .7(100-x) \r \n" ); document.write( "\n" ); document.write( "This forms a solution of 100 L which is 35% peroxide and thus contains \n" ); document.write( ".35(100) peroxide\r \n" ); document.write( "\n" ); document.write( " So solve .2x + .7(100-x) = .35(100) for x \r \n" ); document.write( "\n" ); document.write( "x is the amount of 20% peroxide solution \n" ); document.write( "100 -x is the amount of 70% solution \n" ); document.write( " |