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Anni [7]
3 years ago
15

Which of the following graphs is the solution set of -10 < 3x - 4 < 8?

Mathematics
1 answer:
sveticcg [70]3 years ago
8 0

Answer:

The First Graph -2○ and 4○

Step-by-step explanation:

Because these numbers aren't included in the solution.

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How much pure water must be mixed with 10 liters of a 25% acid solution to reduce it to a 10% acid solution?
elena-s [515]

Suppose you add x liters of pure water to the 10 L of 25% acid solution. The new solution's volume is x + 10 L. Each L of pure water contributes no acid, while the starting solution contains 2.5 L of acid. So in the new solution, you end up with a concentration of (2.5 L)/(x + 10 L), and you want this concentration to be 10%. So we have

\dfrac{2.5}{x+10}=0.1\implies25=x+10\implies x=15

and so you would need to add 15 L of pure water to get the desired concentration of acid.

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3 years ago
Please help answer the question! I will mark you as brainlist
Oksi-84 [34.3K]

Answer:

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Step-by-step explanation:

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3 years ago
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V125BC [204]

Answer:

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Step-by-step explanation:

I think the correct question is like:The common ratio in a geometric series is 0.50 ( point 5) and the first term is 256.  

Find the sum of the first 6 terms in the series.

If it's right, then

Sₙ = (a₁ * (1 - rⁿ)) / (1 - r)

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Answer:

A

Step-by-step explanation:

rational numbers are numbers that can be expressed as fractions.

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Solve this problem 5x+6y=60
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