algebra problem

Question

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515

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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.

Guest Feb 13, 2021

QuestionMachine · Answer 1 · 2021-02-13T04:28:24

+195

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what is the amount of water

+195

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Do you mean How much water must be evaporated from 32 ounces of 4% salt solution to make a 6% salt solution?

AnswerMachine · Answer 2 · 2021-02-13T04:37:45

If you mean QM's question then the answer would be 10 2/3

AnswerMachine · Answer 3 · 2021-02-13T04:40:38

to the nearest hundredth then it would be 10.67

Guest · Answer 4 · 2021-02-13T07:17:55

Pick an easy number ...10 ml of solution to start

salt in starting solution = salt in final solution

.04 (10) = .06 ( 10-x) x is the amount to remove from the 10 ml

.4 = .6 - .06x

-.2 = - .06x

x = 3.33 remove 3.333 ml from every 10 ml starting amount 3.3333/10 = 33 1/3 %