document.write( "Question 657812: How much water must be evaporated from a 250 mL tank of a 3% salt solution to obtain a 5% solution? \n" ); document.write( "
Algebra.Com's Answer #410014 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
How much water must be evaporated from a 250 mL tank of a 3% salt solution to obtain a 5% solution?
\n" ); document.write( "----
\n" ); document.write( "Equation:
\n" ); document.write( "water - water = water
\n" ); document.write( "0.97*250 - 1.00x = 0.95(250-x)
\n" ); document.write( "----
\n" ); document.write( "97*250 - 100x = 95*250 - 95x
\n" ); document.write( "-----
\n" ); document.write( "2*250 = 5x
\n" ); document.write( "x = 2*50
\n" ); document.write( "x = 100 ML (amt. of water to evaporate)
\n" ); document.write( "====================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "===============
\n" ); document.write( "
\n" );