document.write( "Question 518514: A chemist has one solution of 20% acid and another of 50% acid. How many milliliters of each are needed to obtain 18 milliliters of 30% acid? \n" ); document.write( "
Algebra.Com's Answer #345206 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! x+y=18 \n" ); document.write( ".2x+.5y=.3*18 \n" ); document.write( "x=12 ml of 20% \n" ); document.write( "y=6 ml of 50% \n" ); document.write( "check \n" ); document.write( ".2*12+.5*6=.3*18 \n" ); document.write( "2.4+3=5.4 \n" ); document.write( "5.4=5.4 \n" ); document.write( "ok\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |