document.write( "Question 696763: Milan needs 8 oz of a 20% alcohol solution for a chemistry lab. Unfortunately, his teacher only has a 1% alcohol solution and a 50% alcohol solution.\r
\n" ); document.write( "\n" ); document.write( "How many ounces of the 50% alcohol solution should be mixed with the 1% alcohol solution to make 8 oz of the 20% alcohol solution Milan needs? Round to the nearest tenth of an ounce. \n" ); document.write( "

Algebra.Com's Answer #429281 by MathLover1(20850) $\"\"$ $\"About$

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\n" ); document.write( "let $\"y\"$ be the $\"50\"$ % alcohol solution and $\"x\"$ $\"1\"$ % alcohol solution\r
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\n" ); document.write( "\n" ); document.write( " $\"x+%2B+y+=+8\"$
\n" ); document.write( " $\"x+=+8+-+y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\".01x+%2B+.5y+=+1.6\"$ ...substitute $\"x\"$
\n" ); document.write( " $\".01%288+-+y%29+%2B+.5y+=+1.6\"$
\n" ); document.write( " $\".08+-+.01y+%2B+.5y+=+1.6\"$
\n" ); document.write( " $\".49y+=+1.52\"$
\n" ); document.write( " $\"y+=+3.1\"$ .................ounces of $\"50\"$ % alcohol solution\r
\n" ); document.write( "\n" ); document.write( " $\"x+=+8+-+y\"$
\n" ); document.write( " $\"x+=+8+-+3.1\"$
\n" ); document.write( " $\"x+=+4.9\"$ ............ounces of $\"1\"$ % alcohol solution\r
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