document.write( "Question 780824: A radiator contains 6 liters of a 25% antifreeze solution. How much should be drained and replaced with pure antifreeze to produce a 60% antifreeze solution? \n" ); document.write( "
Algebra.Com's Answer #475687 by josgarithmetic(39617)\"\" \"About 
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Let C = capacity of the vessel
\n" ); document.write( "p = percent concentration initially filled in the vessel
\n" ); document.write( "T = percent concentration wanted filled in vessel after adjustment
\n" ); document.write( "h = percent concentation of material to add
\n" ); document.write( "v = volume of the p concentration material to drain and replace with the h material; unknown\r
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\n" ); document.write( "\n" ); document.write( "{pure matter}/{total mixture}={concentration}\r
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\n" ); document.write( "\n" ); document.write( "\"highlight%28%28Cp-vp%2Bvh%29%2FC=T%29\"
\n" ); document.write( "Simplify and solve for v.
\n" ); document.write( "\"Cp%2Bvh-vp=CT\"
\n" ); document.write( "\"v%28h-p%29=CT-Cp\"
\n" ); document.write( "\"highlight%28v=C%28T-p%29%2F%28h-p%29%29\"\r
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\n" ); document.write( "\n" ); document.write( "Substitute according to
\n" ); document.write( "h=100 %
\n" ); document.write( "p=25 %
\n" ); document.write( "T=60 %
\n" ); document.write( "C=6 Liters
\n" ); document.write( "and then compute v for the exercise.
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