document.write( "Question 412657: a 9 gallon solution with 60% sugar is added with another solution with 90% sugar to make a mix of 85% . What is the number of gallons for the 2nd solution?
\n" ); document.write( "i got 36 is that correct?
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Algebra.Com's Answer #289795 by josmiceli(19441)\"\" \"About 
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\"%28.6%2A9+%2B+.9a%29%2F%289+%2B+a%29+=+.85\"
\n" ); document.write( "\"+5.4+%2B+.9a+=+.85%2A%289+%2B+a%29\"
\n" ); document.write( "\"+5.4+%2B+.9a+=+7.65+%2B+.85a\"
\n" ); document.write( "\"+.05a+=+2.25\"
\n" ); document.write( "\"a+=+45\" gallons
\n" ); document.write( "check answer:
\n" ); document.write( "\"%28.6%2A9+%2B+.9%2A45%29%2F%289+%2B+45%29+=+.85\"
\n" ); document.write( "\"%28+5.4+%2B+40.5%29%2F54+=+.85\"
\n" ); document.write( "\"+45.9%2F54+=+.85\"
\n" ); document.write( "\"45.9+=+45.9\"
\n" ); document.write( "OK
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