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Sergeeva-Olga [200]

2 years ago

15

In chemistry you need to dilute an alcohol solution down. You have a 90% alcohol solution and a 20% alcohol solution. If you wan

t to end up with 335L of 50% alcohol, how much of each do you need?

1 answer:

Andru [333]2 years ago

5 0

Answer:

Girl what is the answer

Step-by-step explanation:

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3 years ago

Is the line through points P(0, 1) and Q(5, 0) parallel to the line through points R(–4, 3) and S(–5, 4)? Explain.

ale4655 [162]

Answer:

No

Step-by-step explanation:

Let's find the slope of both lines and then compare these slopes:

From (-4,3) to (-5,4) entails a decrease of -1 in x and an increase of 1 in y. Thus, the slope is m = rise / run = 1/(-1) = -1.

From (0,1) to (5,0) entails an increase of 5 in x and a decrease of 1 in y. The slope here is m = rise / run = -1/5.

For these lines to be parallel, their slopes must be the same. That is not the case here, so NO, the lines are not parallel.

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2 years ago

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Step-by-step explanation:

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3 years ago

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