document.write( "Question 1109364: In the lab, Dale has two solutions that contain alcohol and is mixing them with each other. He uses twice as much Solution A as Solution B. Solution A is 15% alcohol and Solution B is 19% alcohol. How man milliliter of Solution B does he use, if the resulting mixture had 392 milliliters of pure alcohol? \n" ); document.write( "
Algebra.Com's Answer #724343 by ikleyn(52780)![]() ![]() You can put this solution on YOUR website! . \n" ); document.write( " \r\n" ); document.write( "Let x = \"How many milliliters of Solution B does he use\".\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "Then the amount of the pure alcohol in the mixture is\r\n" ); document.write( "\r\n" ); document.write( "0.15*(2x) + 0.19*x milliliters,\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "and your equation to find \"x\" is\r\n" ); document.write( "\r\n" ); document.write( "0.15*(2x) + 0.19*x = 392.\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "\r\n" ); document.write( "The rest is just arithmetic.\r\n" ); document.write( "\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |