Question regarding average velocity

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SUMMARY

The average velocity for a journey covering 472.5 km at two different speeds—40 km/h and 65 km/h—can be calculated using the formula t = d / v. The time taken for the first segment is 11.8125 hours, and for the second segment, it is approximately 7.27 hours. The total time for the journey is 19.0825 hours, leading to an average velocity of 24.75 km/h when the total distance is divided by the total time.

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Homework Statement



What is the average velocity if you drive a distance of 472.5 km at a speed of 40 km/h, then the same distance at a speed of 65 km/h? Answer in units of km/h.

Homework Equations



t = d / v

The Attempt at a Solution



11.8125 = 472.5 / 40
7.269230769 = 472.5 / 65



Not really sure where to go from here.
I've done a few of these equations before, I am just having a brain block and I need to submit the answer to this problem by tonight.

Someone just point me in the right direction. :P
 
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Haha wow that was so simple. Finally remembered.
Got it. :P
 

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