document.write( "Question 659295: How much water should be added to 1 gallon of pure antifreeze to obtain a solution that is 90% antifreeze? \n" ); document.write( "
Algebra.Com's Answer #410723 by josmiceli(19441)\"\" \"About 
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\"+1+%2F+%28+1+%2B+x%29+=+.9+\"
\n" ); document.write( "\"+1+=+.9%2A%28+1+%2B+x+%29+\"
\n" ); document.write( "\"+1+=+.9+%2B+.9x+\"
\n" ); document.write( "\"+.9x+=+.1+\"
\n" ); document.write( "\"+x+=+1%2F9+\"
\n" ); document.write( "1/9 of a gallon of water must be added
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