Respuesta :

Answer : 10km/h

Explanation :

20 minutes is 1/3 of an hour
1/3rd of 30km is 10 i’m
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Answer:

Step-by-step explanation:

speed = distance/time

speed x time = distance

8.3ms^-1 x 1200s

9960m

30km/h = 8.3ms^-1

20min = 1200s

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