document.write( "Question 238262: how many liters of 20% salt solution must be added to 72 liters of 59% salt solution to get a 44% salt solution? \n" ); document.write( "
Algebra.Com's Answer #175080 by alicealc(293)![]() ![]() ![]() You can put this solution on YOUR website! volume of 20% salt solution = x\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "20% * x + 59% * 72 = 44% * (x + 72) \n" ); document.write( "0.2x + 0.59 * 72 = 0.44 * (x + 72) \n" ); document.write( "0.2x + 42.48 = 0.44x + 0.44 * 72 \n" ); document.write( "0.2x + 42.48 = 0.44x + 31.68 \n" ); document.write( "42.48 - 31.68 =0.44x - 0.2x \n" ); document.write( "10.8 = 0.24x \n" ); document.write( "x = 10.8/0.24 = 45\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "so, the volume of 20% salt solution to be added is 45 liters \n" ); document.write( " |