What percent of water must be evaporated from a 4% salt solution so that it becomes 6% salt solution? Round your answer to the nearest hundredth.
+37159 Amount of salt in 4% = .04 x this is the same amount that will be in the final amount
.04x = .06( x %)
.04 = .06 * %
.04/.06 = % = 66.67 % a solution of 67% of the original 4% amount so 33.33% must be removed
