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romanna [79]
3 years ago
15

The height of a doorway is 7 yards. What is the height of the doorway in inches?

Mathematics
1 answer:
sineoko [7]3 years ago
4 0
The height of the doorway is 252 inches
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Hitman42 [59]

The answer is D, because the others can be solved. A when factored is equal to -3, when B is factored it is equal to 3,-1, when C is factored it is 1,-4. D can be solved but you will only get irrational numbers which can't be used.

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A wildlife photographer photographs a crocodile and then paddles against a river current for 6 km. Then, hoping to photograph a
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Answer:

5 or 6

Step-by-step explanation:

So I did it in a different way than shown in rsm classes. I said that the speed was x-2 and x.

then I said the distance was 6 and 15. If the time taken was 1 hour more, then we can come up with this equation:

Since the time is 6/x-2 or 15/x

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multiply everything to get a common denominator then cancel it out to get

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(x-5)(x-6) is factored form.

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\frac{6}{13} \div \frac{6}{12} = \frac{6}{13} \times \frac{12}{6} =\boxed{\bf{\frac{12}{13}}}
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