(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

A car travels up the hill at a constant speed of 30 km/h, then returns down hill at the speed 66 km/h. Calculate the average speed round trip

I can't believe I am stumped on such a kindergarten problem, I hate online homework and the garbage system they are designed on.

2. Relevant equations

3. The attempt at a solution

[itex]\frac{66+30}{2} =48 km/h[/itex]

Says I am wrong, which I prolly am, then states the average speed is the ratio of the total displacement over time, obviously, then says use to D to symbolize distance if need be...?

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# Homework Help: Stupid Speed Question

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