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goldenfox [79]
2 years ago
7

The chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to t

he 10% solution to get this concentration?
Mathematics
2 answers:
3241004551 [841]2 years ago
4 0
The answer is 400 mL
kow [346]2 years ago
4 0

Answer:

400 mL

The next answers are: 600 mL, and then 180 g

Step-by-step explanation:

these are the correct answers on ed-genuity, hope this helps! :)

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3 years ago
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aliina [53]

Answer:

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Step-by-step explanation:

Set up a system of equations like this:

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when two lines cross like this they form vertical angles, and vertical angles are always equal.

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Answer:

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Step-by-step explanation:

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