document.write( "Question 368372: How much pure antifreeze should be added to a radiator that contains 10 gallons of 20% antifreeze solution to produce a 50% antifreeze solution? [Hint: Pure antifreeze is 100% antifreeze.] \n" ); document.write( "
Algebra.Com's Answer #262514 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
Let A be the amount of 100% antifreeze.
\n" ); document.write( "\"100A%2B20%2810%29=50%28A%2B10%29\"
\n" ); document.write( "\"100A%2B200=50A%2B500\"
\n" ); document.write( "\"50A=300\"
\n" ); document.write( "\"highlight%28A=6%29\"gallons
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