Mathematics, 19.12.2019 11:31, Tristabergeron5650
Show an equation and a solution for the problem. arnold needs a 25% solution of nitric acid. he has 20 milliliters (ml) of a 30% solution. how many ml of a 15% solution should he add to obtain the required 25% solution?
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Show an equation and a solution for the problem. arnold needs a 25% solution of nitric acid. he has...
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