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

theres a motorist that travels 30 miles at 60 mph, and another 60 miles at 30 mph.

2. Relevant equations

3. The attempt at a solution

The average speed of the motorist is 36 mph

how was this computed?

i know avg speed is distance / chng of time

however 30+ 60 divided by 60 + 30 is not 36.

need help.

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# Homework Help: Average speed problem.

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