document.write( "Question 863767: What quantity of 80 per cent acid solution must be mixed with a 30 per cent solution to produce 1200 mL of a 50 per cent solution?\r
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\n" ); document.write( "I am not sure where to start, and how to figure this out.
\n" ); document.write( "Thank you
\n" ); document.write( "Marie
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Algebra.Com's Answer #520590 by josgarithmetic(39618)\"\" \"About 
You can put this solution on YOUR website!
This will explain everything you need about this general problem:\r
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\n" ); document.write( "\n" ); document.write( "Mixing two concentrations for known amount of mixture
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