document.write( "Question 796590: How much 30% acid solution should be added to 10% acid solution to make 100 ml of a 12% acid solution? \n" ); document.write( "
Algebra.Com's Answer #481440 by stanbon(75887)\"\" \"About 
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How much 30% acid solution should be added to 10% acid solution to make 100 ml of a 12% acid solution?
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\n" ); document.write( "Equation:
\n" ); document.write( "acid + acid = acid
\n" ); document.write( "0.30x + 0.10(100-x) = 0.12*100
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\n" ); document.write( "30x + 10*100 - 10x = 12*100
\n" ); document.write( "20x = 2*100
\n" ); document.write( "x = 10 ml (amt of 30% solution needed)
\n" ); document.write( "100-x = 90 ml (amt of 10% solution needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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