document.write( "Question 646081: How much pure water must be mixed with 10 liters of a 25% acid solution to reduce it to a 10% acid solution? \n" ); document.write( "
Algebra.Com's Answer #405709 by stanbon(75887)\"\" \"About 
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How much pure water must be mixed with 10 liters of a 25% acid solution to reduce it to a 10% acid solution?
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\n" ); document.write( "Equation:
\n" ); document.write( "water + water = water
\n" ); document.write( "0.75*10 + x = 0.90(10+x)
\n" ); document.write( "75*10 + 100x = 90*10 + 90x
\n" ); document.write( "10x = 15*10
\n" ); document.write( "x = 15 liters (amt. of water needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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