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2 years ago

9. If a train travels 270 mi. in 9 hr., what is its average speed?

Mathematics

2 answers:

Aleks [24]2 years ago

5 0

Answer:

30 miles per hour

Step-by-step explanation:

You divide the distance by time to receive the average speed.

270 / 9 = 30

RoseWind [281]2 years ago

5 0

Answer:

The train travels 30 miles in 1 hour

Step-by-step explanation:

First, you take the miles and divided it by the hours. That will give you the average speed/MPH (miles per hour)

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Solve for x. 5 1/4 + x + 6 5/6 + 4 2/3 = 22 1/6 A. 5 5/12 B. 6 1/2 C. 6 7/12 D. 7 1/2

Vladimir79 [104]

5 1/4 + x + 6 5/6 + 4 2/3 = 22 1/6

5 3/12 + x + 6 10/12 + 4 8/12 = 22 2/12
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x = 22 2/12 - 16 9/12
x = 21 14/12 - 16 9/12
x = 5 5/12

answer is A. 5 5/12

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4 years ago

A tourist looks out from the observation deck of the Space Needle in Seattle. The deck is at a height of 520 ft. She sees her fr

WARRIOR [948]

Answer:

Last option 527.7 ft

Step-by-step explanation:

From the diagram attached we can see the angle of depression is 80.2 which is equal to ∠ACB (alternate angles)

Height of the deck AB = 520 ft. and we have to calculate the distance H between the tourist and her friend.

Sin ∠ACB = $\frac{AB}{AC}$

Now we apply sin rule sin 80.2 = $\frac{520}{H}$

$.9854=\frac{520}{H}$

$H = \frac{520}{.9854} = 570 ft$

So the tourist and her friend are 527.7 ft apart.

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3 years ago

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Lina20 [59]

Answer:

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Step-by-step explanation:

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3 years ago

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Genrish500 [490]

Answer:

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Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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