document.write( "Question 569130: it is necessary to have a 70% antifreeze solution in a radiator of a certain car. the radiator now has 20 ml of 60% solution. how much of this solution should be drained and replaced with 100% antifreeze to get the desired strength \n" ); document.write( "
Algebra.Com's Answer #367245 by lwsshak3(11628) ![]() You can put this solution on YOUR website! it is necessary to have a 70% antifreeze solution in a radiator of a certain car. the radiator now has 20 ml of 60% solution. how much of this solution should be drained and replaced with 100% antifreeze to get the desired strength. \n" ); document.write( "** \n" ); document.write( "x=ml of 60% solution to be drained and replaced with 100% antifreeze \n" ); document.write( "20-x=ml of 60% solution remaining \n" ); document.write( ".. \n" ); document.write( "60%(20-x)+100%x=70%*20 \n" ); document.write( "12-0.6x+x=14 \n" ); document.write( "0.4x=2 \n" ); document.write( "x=5 ml \n" ); document.write( "ans: \n" ); document.write( "ml of 60% solution to be drained and replaced with 100% antifreeze=5 \n" ); document.write( " |