document.write( "Question 715306: a solution of salt and water contains 12% salt by weight .after evaporation of 25 kg of water from the solution, the concentration of salt is 22%. what is the original quantity of salt in the solution? \n" ); document.write( "
Algebra.Com's Answer #439374 by stanbon(75887)\"\" \"About 
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a solution of salt and water contains 12% salt by weight .after evaporation of 25 kg of water from the solution, the concentration of salt is 22%. what is the original quantity of salt in the solution?
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\n" ); document.write( "Equation:
\n" ); document.write( "salt + salt = salt
\n" ); document.write( "0.12x - 0*25 = 0.22*(x-25)
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\n" ); document.write( "12x - 0 = 22x - 22*25
\n" ); document.write( "-10x = -22*25
\n" ); document.write( "x = 55 kg (original quantity)
\n" ); document.write( "0.12x = 6.6 kg (original amount of salt)
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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