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During his morning commute to work in rush hour traffic, Justin's average speed was 30 mi/h. During his afternoon commute back home along the same route, his average speed was 60 mi/h. What was his average speed for the entire round trip?          

 May 5, 2022
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Avg speed  over the same  distance    =  2 * product of the rates /  ( sum of the rates)  =

 

2 (30)(60) / ( 30 + 60)

 

I'll leave the rest for you.......

 

 

cool cool cool

 May 6, 2022

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