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
You might be interested in
Answer:
67.02
Step-by-step explanation:
Okay add 78 and 66. Then add 96 and 108. It should be 144 by 204. I know math is hard, but when you work at it you can do amazing things! I hope that helps you.
Answer:
1.9 x 10=19
4.2x10=42
Now just find out how to multiply 19 -8 times and how to multiply 42, -13 times.
Step-by-step explanation:
hope this helps if not sorry
Answer:
See image and connect the lines using the coordinates.
Step-by-step explanation:
Answer:
9.8 Inch
Step-by-step explanation:
The distance from the upper left corner to the bottom right corner of the box is the longest diagonal of the box.
For a rectangular prism:
Length of the Longest diagonal
Therefore:
Length of the pencil