document.write( "Question 559646: a car radiator has a capacity of 16 quartz and is filled with a 25% antifreeze solution. how much must be drained off and replaced with pure antifreeze to obtain a 40% antifreeze solution? \n" ); document.write( "
Algebra.Com's Answer #844458 by josgarithmetic(39617)\"\" \"About 
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drain out some v quarts (not \"quartz\") of the 25% and replace with the 100% antifreeze.\r
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\n" ); document.write( "\n" ); document.write( "\"%2816%2A0.25-0.25v%2B1.00%2Av%29%2F16=0.4\"\r
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\n" ); document.write( "\n" ); document.write( "Simplify and solve for v.
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