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notka56 [123]
3 years ago
15

How many liters of a 90% acid solution must be added to 6 liters of a 15% acid solution to obtain a 40% acid solution?

Mathematics
1 answer:
tatiyna3 years ago
4 0

3 liters must be added

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Vladimir79 [104]

Answer:

2 cases of soya bean milk will have the same volume as 1 case of fruit juice.

Step-by-step explanation:

Let the case of soya beans drink be x and let the case of fruit juice be y

We are told that the room can store either 10 cases of soya beans drink and 8 cases of fruit juice or 4 cases of soybeans drink and 11 cases of fruit juice.

This means that;

10x + 8y = 4x + 11y

Rearranging, we have;

10x - 4x = 11y - 8y

6x = 3y

Thus;

y = 6x/3

y = 2x

This means that 2 cases of soya bean milk will have the same volume as 1 case of fruit juice.

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3 years ago
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2.43

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3 years ago
What is the quotation of 7^-1/7^2
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Step-by-step explanation:

<u>Solving in steps</u>

  • 7^-1/7^2 =
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The result of =ROUND(513.2413,2) is __
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Step-by-step explanation:

None of the numbers are large enough to make the next number higher. Therefore that would just be your answer.

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What is the first step to solve this equation : 11-3x=44
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Step-by-step explanation:

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