document.write( "Question 897822: The Cooling system of a certain car has a capacity of 4 gallons and is currently filled with a 45% mixture of antifreeze. How much of this mixture must be drained and replaced with pure antifreeze so that the resulting mixture is 67% antifreeze? \n" ); document.write( "
Algebra.Com's Answer #545121 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
0.45*4=0.67*x
\n" ); document.write( "1.8=0.67x
\n" ); document.write( "x=2.68656716 new amount
\n" ); document.write( "Remove 1.31343284
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