Joshua is doing a chemistry experiment that calls for a 30% solution of copper sulfate. He has 40ml of 25% solution. How many millimeters of 60% solution should joshua add to obtain the required 30% solution?
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Home » Mathematics » Joshua is doing a chemistry experiment that calls for a 30% solution of copper sulfate. He has 40ml of 25% solution. How many millimeters of 60% solution should joshua add to obtain the required 30% solution?