Round-trip

A woman works at a law firm in city A, about 50 miles from city B. She must go to the law library in city B to get a document. Find how long it takes her to drive​ round-trip if she averages 40 mph.

Correct answer:

t =  2.5 h

Step-by-step explanation:

s=50 mile v=40 mph  2s=vt  t=2 s/v=2 50/40=2.5 h



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