document.write( "Question 1034025: She needs to prepare 24 ounces of a 10% hydrochloric acid solution. Find the amount of 12% solution and the amount of 6% solution she should mix to get this solution \n" ); document.write( "
Algebra.Com's Answer #648616 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Let's call the amount of 12% used, x. \n" ); document.write( "Then the amount of 6% used would have to be 24-x (since we need 24 ounces total). \n" ); document.write( "Here's the set up... \n" ); document.write( ".12x + .06(24-x) = .10(24) \n" ); document.write( "Now solve for x... \n" ); document.write( ".12x + 1.44 - .06x = 2.4 \n" ); document.write( ".06x = .96 \n" ); document.write( "x = 16 ounces of 12% \n" ); document.write( "24-x = 8 ounces of 6% \n" ); document.write( " |