document.write( "Question 953593: How many liters of water should be added to 20 liters of a 30% sulfuric acid solution to reduce it to a 15% solution? \n" ); document.write( "
Algebra.Com's Answer #582380 by stanbon(75887)\"\" \"About 
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How many liters of water should be added to 20 liters of a 30% sulfuric acid solution to reduce it to a 15% solution?
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\n" ); document.write( "water + water = water
\n" ); document.write( "0.7*20 + 1*x = 0.85(20+x)
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\n" ); document.write( "70*20 + 100x = 85*20 + 85x
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\n" ); document.write( "15x = 15*20
\n" ); document.write( "x = 20 liters (amt. of water to add)
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\n" ); document.write( "Please let me know if this helps.
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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