document.write( "Question 420867: If I have a 20 qt radiator containing a 80% antifreeze solution. How much of the solution should I drain and replace with pure water to get a solution that is 50% antifreeze? \n" ); document.write( "
Algebra.Com's Answer #853228 by josgarithmetic(39703)\"\" \"About 
You can put this solution on YOUR website!
To drain and replace v quarts
\n" ); document.write( "and change from 80% to 50% antifreeze\r
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\n" ); document.write( "\n" ); document.write( "\"%280.8%2A20-0.8v%2B0v%29%2F20=0.5\"\r
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\n" ); document.write( "\n" ); document.write( "Uncomplicated algebra steps. You do the rest.
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