document.write( "Question 592542: pure acid is to be added to 10% acid solution to obtain 90L of 53% solution. what amount of each should be used? \n" ); document.write( "
Algebra.Com's Answer #375989 by stanbon(75887)\"\" \"About 
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pure acid is to be added to 10% acid solution to obtain 90L of 53% solution. what amount of each should be used?
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\n" ); document.write( "Equation:
\n" ); document.write( "acid + acid = acid
\n" ); document.write( "x + 0.10(90-x) = 0.53*90
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\n" ); document.write( "Multiply thru by 100 to get:
\n" ); document.write( "100x + 10*90 - 10x = 53*90
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\n" ); document.write( "90x = 43*90
\n" ); document.write( "x = 43 L (amt. of pure acid to be added)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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