document.write( "Question 149895: How much water must be boiled off from 40 liters of a 30% salt solution to produce a 80% salt solution? \n" ); document.write( "

Algebra.Com's Answer #110027 by checkley77(12844) $\"\"$ $\"About$

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.3*40=12 amount of salt in the mixture.
\n" ); document.write( ".8x=12
\n" ); document.write( "x=12/.8
\n" ); document.write( "x=15 L is 80% salt mixture.
\n" ); document.write( "40-15=25 L must be boiled off.
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