document.write( "Question 238262: how many liters of 20% salt solution must be added to 72 liters of 59% salt solution to get a 44% salt solution? \n" ); document.write( "
Algebra.Com's Answer #175080 by alicealc(293)\"\" \"About 
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volume of 20% salt solution = x\r
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\n" ); document.write( "\n" ); document.write( "20% * x + 59% * 72 = 44% * (x + 72)
\n" ); document.write( "0.2x + 0.59 * 72 = 0.44 * (x + 72)
\n" ); document.write( "0.2x + 42.48 = 0.44x + 0.44 * 72
\n" ); document.write( "0.2x + 42.48 = 0.44x + 31.68
\n" ); document.write( "42.48 - 31.68 =0.44x - 0.2x
\n" ); document.write( "10.8 = 0.24x
\n" ); document.write( "x = 10.8/0.24 = 45\r
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\n" ); document.write( "\n" ); document.write( "so, the volume of 20% salt solution to be added is 45 liters
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