document.write( "Question 704921: A chemist prepared 100 mL of 15% saline solution by using a 20% solution, an 18% solution, and 40 mL of a 10% solution. How much of the 20% and 18% were used? Please include an equation for setting this problem up if possible. Thanks! \n" ); document.write( "
Algebra.Com's Answer #434337 by josgarithmetic(39617)![]() ![]() ![]() You can put this solution on YOUR website! x is how much 18% saline \n" ); document.write( "y is how much 20% saline\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The system to solve: \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Note that you may work the rational equation into \n" ); document.write( "18x+20y+40*10=100*15 \n" ); document.write( "18x+20y+400=1500 \n" ); document.write( " |