Bonjour,
Convertissons :
[tex]7000s\\\\=\frac{7000}{60}min\\\\\approx166.67min\\\approx166min+0.67min\\\approx166min+0.67\times60\\[/tex]
[tex]\approx166min+40s\\\\= \frac{116}{60}h+40s\\\\ \approx1.93h+40s\\\approx1h+0.93h+40s\\\approx1h+0.93\times60(min)+40s\\\approx1h+55.8min+40s\\\approx1h+55min+0.8min+40s\\\approx1h+55min+0.8\times60(s)+40s\\\approx1h+55min+48s+40s\\\approx1h+56min+28s[/tex]
Or, si on fait le calcul, c'est-à-dire :
[tex]1\times3600+56\times60+28=6988s[/tex]
On a une marge d'erreur de [tex]12s[/tex].
En espérant t'avoir aidé.
