document.write( "Question 197840: A solution containing 28% acid is to be mixed with a solution containing 40% acid to make a 300 L solution which contains 36% acid. How of each solution should be used to make the desired mixture? \n" ); document.write( "
Algebra.Com's Answer #148357 by checkley77(12844)![]() ![]() ![]() You can put this solution on YOUR website! .40x+.28(300-x)=.36*300 \n" ); document.write( ".40x+84-.28x=108 \n" ); document.write( ".12x=108-84 \n" ); document.write( ".12x=24 \n" ); document.write( "x=24/.12 \n" ); document.write( "x=200 L of 40% solution is used. \n" ); document.write( "300-200=100 L of 28% solution is used. \n" ); document.write( "Proof: \n" ); document.write( ".40*200+.28*100=.36*300 \n" ); document.write( "80+28=108 \n" ); document.write( "108=108 \n" ); document.write( " |