document.write( "Question 742941: how much 10% acid solution should be added to 30 liters of 25% acid solution to achieve a 15% solution? \n" ); document.write( "
Algebra.Com's Answer #452690 by stanbon(75887)\"\" \"About 
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how much 10% acid solution should be added to 30 liters of 25% acid solution to achieve a 15% solution?
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\n" ); document.write( "acid + acid = acid
\n" ); document.write( "0.10x + 0.25*30 = 0.15(x+30)
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\n" ); document.write( "10x + 25*30 = 15x + 15*30
\n" ); document.write( "5x = 10*30
\n" ); document.write( "x = 60 liters (amt. of 10% solution needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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