document.write( "Question 399300: How many ounces of a 30 % solution must be mixed with 12 ounces of a 35 % solution to make a 33 % solution \n" ); document.write( "

Algebra.Com's Answer #282767 by josmiceli(19441) $\"\"$ $\"About$

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$\"a\"$ = ounces of 30% solution to use
\n" ); document.write( " $\"%28.3a+%2B+.35%2A12%29%2F%28a+%2B+12%29+=+.33\"$
\n" ); document.write( " $\".3a+%2B+4.2+=+.33%2A%28a+%2B+12%29\"$
\n" ); document.write( " $\".3a+%2B+4.2+=+.33a+%2B+3.96\"$
\n" ); document.write( " $\".03a+=+4.2+-+3.96\"$
\n" ); document.write( " $\".03a+=+.24\"$
\n" ); document.write( " $\"a+=+8\"$
\n" ); document.write( "8 ounces of the 30% solution are needed
\n" ); document.write( " \n" ); document.write( "

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