document.write( "Question 334078: A 100-kilogram salt solution originally 4% by weight. Salt in water is boiled to reduce water content until the concentration is 5% by weight salt. How much water is evaporated? \n" ); document.write( "

Algebra.Com's Answer #239397 by josmiceli(19441) $\"\"$ $\"About$

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In words:
\n" ); document.write( "(kg of salt in final solution)/(total kg of final solution) = 5%
\n" ); document.write( "Let $\"x\"$ = kg of water that needs to be evaporated
\n" ); document.write( "given:
\n" ); document.write( "Salt in original solution: $\".04%2A100+=+4\"$ kg
\n" ); document.write( "------------------------------------
\n" ); document.write( "The final solution has $\"100+-+x\"$ kg of salt plus water
\n" ); document.write( "The original kg of salt never changes, so It
\n" ); document.write( "stays at $\"4\"$ kg
\n" ); document.write( "I can't finish- have to go \n" ); document.write( "

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