Two trains on opposite tracks leave the same station at the same time. One train travels at an average speed of 80 kilometres pe
r hour and the other travels at an average speed of 70 kilometres per hour. How long after they leave the station will they be 50 km apart?
1 answer:
9514 1404 393
Answer:
20 minutes
Step-by-step explanation:
The trains are separating at the rate of 80 +70 = 150 km/hour. The time required to be 50 km apart is then ...
time = distance/speed = (50 km)/(150 km/h) = 1/3 h = 20 minutes
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They site there sources or give information to prove why there point is correct
Answer:
The diameter is 47
Step-by-step explanation:
Given
--- Circumference
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Required
Determine the diameter (d)
The circumference of a circle is:

Make d the subject

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I honestly don't know, but I think it is 63
45 packages are shipped in one hour. I divided 315 by 7
Quadrant 4 is the correct answer, and it's the only