3,5 h = _ h_ min ( B) 2,5 min = _ min _ s repondez a ma question svp​

Réponse :

3,5h = 3,5*60=210min=3h30min

2,5min=2,5*60=150sec = 2min30sec

Explications étape par étape

Bonjour,

0,5h=0,5*60min=30min

donc: 3,5h=3h30min

0,5min=0,5*60s=30s

donc: 2,5min=2min30s