document.write( "Question 857057: How much of a 50% salt solution should be added to 80L of a 5% salt solution to obtain a 30% salt solution? \n" ); document.write( "
Algebra.Com's Answer #516350 by stanbon(75887)\"\" \"About 
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How much of a 50% salt solution should be added to 80L of a 5% salt solution to obtain a 30% salt solution?
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\n" ); document.write( "Equation:
\n" ); document.write( "salt + salt = salt
\n" ); document.write( "0.50x + 0.05*80 = 0.30(x+80)
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\n" ); document.write( "50x + 5*80 = 30x + 30*80
\n" ); document.write( "20x = 25*80
\n" ); document.write( "x = 100 L (amt. of 50% solution needed)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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