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djverab [1.8K]
3 years ago
15

a class contains 8 men and 12 women. which fraction represents the ratio of women to all the students in the class?

Biology
2 answers:
Naily [24]3 years ago
7 0
12/20 I think that’s the answer
Licemer1 [7]3 years ago
5 0
12/20 is the answer I think. I hope this helps you!!
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3 years ago
A plane is traveling at 80 m/s. To prepare for landing, it decreases its speed to 50 m/s in 120 s.
emmainna [20.7K]

Answer:

The deceleration of the plane is 0.25 m/s^{2}.

Explanation:

Deceleration is the converse of acceleration.

From first law of motion, we have;

v = u + at

where: v is the final velocity, u is the initial velocity, a is the acceleration and t is the time taken.

Thus,

v = 50 m/s

u = 80 m/s

t = 120 s

50 = 80 + 120a

50 - 80 = 120a

-30 = 120a

a = \frac{-30}{120}

  = -0.25

a = -0.25 m/s^{2}

The deceleration of the plane is 0.25 m/s^{2}.

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3 years ago
Explain why the answer is right please
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Describe how science can have an effect on society
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