Respuesta :

trashmaster2000
The answer is 36. That's because all you have to do is multiply 18 by 2 (since he goes 18 miles every half hour.)
We know, Average speed = distance / time

So, s = 18 / 1/2

s = 18 * 2 / 1

s = 36 mph

In short, Your Answer would be: 36 mph

Hope this helps!

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