document.write( "Question 303516: I need help with this no one can seem to help me:
\n" ); document.write( "Doreen Schmidt is a chemist with Gemco Pharmaceutical. She needs to prepare 12 ounces of a 9% hydrochloric acid solution. Find the amount of a 4% solution and the amount of a 12% solution she should mix to get this solution.
\n" ); document.write( "The answer I got was 12%=3.75 and 4%=8.25... Am I remotely correct?
\n" ); document.write( "Janna \n" ); document.write( "

Algebra.Com's Answer #217518 by scott8148(6628) $\"\"$ $\"About$

You can put this solution on YOUR website!
no, not remotely\r
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\n" ); document.write( "\n" ); document.write( "if you mixed equal amounts of the two solutions; the strength of the resulting mixture would be the average
\n" ); document.write( "___ in this case, 12 ounces of 8%
\n" ); document.write( "___ so the stronger solution must be more than half of the mixture\r
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\n" ); document.write( "\n" ); document.write( "(4%)(x) + (12%)(12 - x) = (9%)(12)\r
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\n" ); document.write( "\n" ); document.write( "4x + 144 - 12x = 108\r
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\n" ); document.write( "\n" ); document.write( "36 = 8x\r
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\n" ); document.write( "\n" ); document.write( "4.5 = x\r
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\n" ); document.write( "\n" ); document.write( "4.5 oz of 4% and 7.5 oz of 12% \n" ); document.write( "

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