document.write( "Question 1033421: How many ounces of a 15% alcohol solution and a 42% alcohol solution must be contained to obtain 69 ounces of a 24% solution? \n" ); document.write( "
Algebra.Com's Answer #648032 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! x=15% \n" ); document.write( "69-x=42% \n" ); document.write( "0.15x+(69-x)(0.42)=69(.24)=16.56 \n" ); document.write( "0.15x+28.98-0.42x=16.56 \n" ); document.write( "-0.27x=-12.42 \n" ); document.write( "x=46 ounces of 15% \n" ); document.write( "69-x=23 ounces of 42% \n" ); document.write( "=============== \n" ); document.write( "Way 2: \n" ); document.write( "24% is 1/3 the way between 15 and 42% \n" ); document.write( "Therefore, 2/3 is the 15% and 1/3 the 42%, and that is 46 and 23 ounces. \n" ); document.write( " |