document.write( "Question 764701: There is 15 liters of a 12 percent dye solution. How much water must be evaporated from this mixture to obtain a solution that is 20 percent dye? Assume that the total number of dye is not affected by the process of evaporation. \n" ); document.write( "
Algebra.Com's Answer #465629 by Theo(13342)\"\" \"About 
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.12 * 15 = 1.8 liters of dye.
\n" ); document.write( "let x = total amount of the new solution.
\n" ); document.write( "then 1.8 / x = .2
\n" ); document.write( "solve for x to get x = 1.8 / .2 = 9
\n" ); document.write( "the new solution contains 9 liters of both dye and water.
\n" ); document.write( "the water in the new solution is equal to 9 - 1.8 = 7.2 liters.
\n" ); document.write( "the water in the old solution is equal to .88 * 15 = 13.2 liters.
\n" ); document.write( "the amount of water to be removed from the old solution is equal to 13.2 - 7.2 = 6 liters.
\n" ); document.write( "your original solutions contained:
\n" ); document.write( "1.8 liters of dye.
\n" ); document.write( "13.2 liters of water.
\n" ); document.write( "total liters of original solution is equal to 15.
\n" ); document.write( "your new solution contains:
\n" ); document.write( "1.8 liters of dye.
\n" ); document.write( "7.2 liters of water.
\n" ); document.write( "total liters of new solution is equal to 9.\r
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