Bonjour,
Exercice 6 :
Question 1 :
[tex]t = \frac{d}{v} = \frac{87,5}{17,5} = 5 \ h[/tex]
Question 2 :
[tex]t = \frac{d}{v} = \frac{63}{18} = 3,5 \ h = 3\ h \ 30 \ min[/tex]
Exercice 7 :
Question 1 :
[tex]d = v \times t = 65 \times 2,5 = 162,5 \ km[/tex]
Question 2 :
1 h 24 min = 60 + 24 = 84 min = 84/ 60 = 1,4 h
[tex]d = v \times t = 15 \times 1,4 = 21 \ km[/tex]
