zebragal
14.04.2020 •
Mathematics
Parvinder works at a gym. She earns $8.75 per hour worked and $10.00 for each gym membership she sells. If she works 16 hours and has earned $250.00, how many gym memberships has she sold?
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Ответ:
His speed is 2 m/s
His velocity is 0 m/s
Step-by-step explanation:
I'll assume the question is
Kia was 200 m north of the Library when he remembered he had to return some books to the library it took him to 200 seconds to do the round-trip which best describes hist round-trip.
Kia's distance from the Library is 200 m
the round-trip took him 200 s
The total distance for the round trip = 200 x 2 = 400 m
His displacement for the round trip = 0 m (since he returns to his original position)
His speed = distance/time = 400/200 = 2 m/s
His velocity = displacement/time = 0/200 = 0 m/s