document.write( "Question 645893: The radiator in a car is filled with a solution of 60% antifreeze amd 40% water. The manufacturer of the antifreeze suggests that. for summer driving, optimal cooling of the engine is obtained with only 40% antifreeze. If the capacity of the radiator is 3.6 L, how much coolant should be drained and replaced with water to reduce the antifreeze concentration to the recommended level? \n" ); document.write( "
Algebra.Com's Answer #405659 by lwsshak3(11628)\"\" \"About 
You can put this solution on YOUR website!
The radiator in a car is filled with a solution of 60% antifreeze amd 40% water. The manufacturer of the antifreeze suggests that. for summer driving, optimal cooling of the engine is obtained with only 40% antifreeze. If the capacity of the radiator is 3.6 L, how much coolant should be drained and replaced with water to reduce the antifreeze concentration to the recommended level?
\n" ); document.write( "let x=amt of 60% coolant should be drained and replaced with water
\n" ); document.write( "3.6-x=amt of 60% coolant remaining
\n" ); document.write( "..
\n" ); document.write( "60%(3.6-x)+0%x=40%*3.6
\n" ); document.write( "2.16-.6x=1.44
\n" ); document.write( ".6x=2.16-1.44=.72
\n" ); document.write( "x=1.2
\n" ); document.write( "amt of 60% coolant should be drained and replaced with water=1.2 L
\n" ); document.write( "
\n" );