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AlekseyPX
3 years ago
6

Can you please help?

Mathematics
1 answer:
xz_007 [3.2K]3 years ago
4 0

Answer:

6.5 km per minute

Step-by-step explanation:

To calculate the average speed, you add the speed of one trip to the speed of the other then divide by 2.

The first trip was a speed of 80km/10 minutes or 8km per 1 minute.

The second trip was a speed of 100km/20 minutes or 5km per 1 minute.

To find the average, add and divide by 2:

\frac{8+5}{2}=\frac{13}{2}=6.5  km per minute  

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