document.write( "Question 282799: Arthur needs 20 quarts of 50% antifreeze solution in his radiator. He plans to obtain this mixture by mixing some pure antifreeze with an appropriate amount of a 40% antifreeze solution. How many quarts of each should he use? \n" ); document.write( "
Algebra.Com's Answer #205303 by richwmiller(17219)\"\" \"About 
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20*.5=x+.4y
\n" ); document.write( "x+y=20\r
\n" ); document.write( "\n" ); document.write( "x=3 1/3 quarts of pure
\n" ); document.write( "y=16 2/3 quarts of 40 %
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