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ClaryOkay
@ClaryOkay
May 2019
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Bonjour ! Je dois faire un exercice de mathémathiques sur la vitesse. Pouvez-vous m'aider ?
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nadiab
42.195 km = 42 +3*60+59 195 m
2h 03mn 59 s= 2*3 600= 7 439 s
donc V= d/t
V= 42 195/7 439
V= 5.67 m/s
pour 1km/h = 1000m/3600s =
pour 1 m/s =3600/1000=3.6 km/h
V=42195*3.6/7439
V=20.419≈
20.42 km/h
3 votes
Thanks 2
sonic75
c'est bien mais juste un produit en croix aurait suffit
ClaryOkay
Merci beaucoup !
sonic75
ah oui c'est vrai dsl
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Lista de comentários
2h 03mn 59 s= 2*3 600= 7 439 s
donc V= d/t
V= 42 195/7 439
V= 5.67 m/s
pour 1km/h = 1000m/3600s =
pour 1 m/s =3600/1000=3.6 km/h
V=42195*3.6/7439
V=20.419≈20.42 km/h