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Mathematics
30.09.2020 22:42
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12 mL of a 5% solution. He also has a solution that has a concentration of 30%.

12 mL of a 5% solution. He also has a solution that has a concentration of 30%. How many mililiters of the 30% solution does Deon need to add to the 5% solution to obtain a 20% solutions? The answer is 18ml but I need the work Iโ€™ll make u the brainilest answer
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sierravick123owr441
sierravick123owr441
4,5(87 marks)
(X-5)(x+5) is the answer

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