Un conducteur roule pendant 1 h 48 min à la vitesse moyenne de 80km/h, puis pendant 42 minutes à la vitesse moyenne de 90 km/h.
1)Combien de temps a-t-il roulé ?
2)Quelle distance a-t-il parcourue au total ?
3)Calculer sa vitesse moyenne sur l'ensemble du trajet.

answer: 140

step-by-step explanation:

so just add all then it will be your answer but i am not pretty sur eif it is but hope this i am here to people

ok so the answer to your question is simple as long as you look at the different dimensions that contain the exemplary letters that combined in the right order give you words that eventually within the 5th dimension will conform and give you the correct answer to your question. hope i , stop looking at this easily, look at it with a spectral view.

step-by-step explanation:

told you

a)(x-2)^2+(y-1)^2=9

step-by-step explanation:

(picture explains)

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy