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vladimir2022 [97]
3 years ago
8

Out of 12 pets that visited the vet, 10 had a flea problem. Out of 36 pets, how many had flea problems?

Mathematics
1 answer:
Vanyuwa [196]3 years ago
3 0
The answer would be C. 30

If 10/12 pets had fleas and x/36 had fleas:

10/12*3=30/36
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Delvig [45]
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2 years ago
A source of laser light sends rays AB and AC toward two opposite walls of a hall. The light rays strike the walls at points B an
____ [38]

Answer: 70  meters.

Step-by-step explanation:

Observe the figure attached.

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DE=AD+AE

<em />

Both triangles are right triangles. Therefore, you can calculate the distance  between the walls as following:

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cos\alpha=\frac{adjacent}{hypotenuse}\\\\cos(60\°)=\frac{AD}{60}\\AD=30m

- Calculate the distance AE:

tan\beta =\frac{opposite}{adjacent}\\\\tan(45\°)=\frac{40}{AE}\\\\AE=\frac{40}{tan(45\°)}\\\\AE=40m

Therefore the distance between the walls is:

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Answer:

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