document.write( "Question 473617: A chemist has 35% NaCl solution and 50% NaCl solution. How many liters of each should he mix to get 10 L of NaCl Solution with 40% base concentration? \n" ); document.write( "
Algebra.Com's Answer #324828 by Alan3354(69443)\"\" \"About 
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A chemist has 35% NaCl solution and 50% NaCl solution. How many liters of each should he mix to get 10 L of NaCl Solution with 40% base concentration?
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\n" ); document.write( "t = 35%
\n" ); document.write( "f = 50%
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\n" ); document.write( "t + f = 10
\n" ); document.write( "0.35t + 0.5f = 0.4*10
\n" ); document.write( "t = 10 - f
\n" ); document.write( "0.35t + 0.5f = 0.4*10
\n" ); document.write( "Sub for t
\n" ); document.write( "0.35(10-f) + 0.5f = 4
\n" ); document.write( "7(10-f) + 10f = 80
\n" ); document.write( "70 + 3f = 80
\n" ); document.write( "f = 10/3 liters
\n" ); document.write( "t = 20/3 liters
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