Respuesta :

Step-by-step explanation:

So first of all, you need to know the formula for finding out speed, that is,

Speed = Distance / Time

Now, we need to convert minutes into hours.

It would be done dividing 45 by 60.

(Because, 60 minutes = 1 hour, so 45 minutes = 45/60 hours), that comes out to be 0.75 hours.

Speed = 60/0.75 = 80

80 km/h is the answer.

Hope it helps :)

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