document.write( "Question 705187: A nurse has two solutions that contain different concentrations of a certain medication. One is a 20% concentration and the other is a 5% concentration. How many cubic centimeters of each should he mix to obtain 10 cc of a 11% solution? \n" ); document.write( "
Algebra.Com's Answer #434440 by josgarithmetic(39618)![]() ![]() ![]() You can put this solution on YOUR website! (y*0.2+x*0.05)/10=0.11 \n" ); document.write( "x+y=10\r \n" ); document.write( "\n" ); document.write( "Where x cc of 5% solution, y cc of 20% solution.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Transform the rational equation to 20y+5x=10*11, divide by 5, \n" ); document.write( "4y+x=22\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Now you have the system \n" ); document.write( "x+4y=22 \n" ); document.write( "x+y=10\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Subtract second equation from first equation and obtain 3y=12, then y=4. \n" ); document.write( "Since |