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e-lub [12.9K]
3 years ago
9

What is the average speed of a helicopter that flies 50km in 20 minutes and then 30km minutes

Chemistry
1 answer:
Usimov [2.4K]3 years ago
6 0

Answer:

150km/hr

Explanation:

When it flies 50km, the average speed is 150km/hr.

When it flies 30 km, how many minutes does it take?

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