document.write( "Question 917346: how many liters of pure water must be combined with an 18-liter mixture that is
\n" ); document.write( "24% acid in order to obtain a mixture that is 15% acid? Your answer may be a
\n" ); document.write( "decimal number, but it must be exact.\r
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Algebra.Com's Answer #556628 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
--- percent ---------------- Amount
\n" ); document.write( "acid 24 ---------------- 18 liters
\n" ); document.write( "water 0 ---------------- x liters
\n" ); document.write( "Mixture 15 ---------------- 18 + x liters
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\n" ); document.write( "24 * 18 + 0 x = 15 ( 18 + x )
\n" ); document.write( "432 + 0 x = 270 + 15 x
\n" ); document.write( "0 x -15 x = -432 + 270
\n" ); document.write( "-15 x = -162
\n" ); document.write( "/ -15
\n" ); document.write( "x = 10.8 liters water
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