Question

2h10min30s.........s? ​

Answer 1

Răspuns:

Salut

2h 10min 30s = 7830s

2h=3600*2=7200s

10 min=10*60=600s

Calcul :7200+600+30=7800+30=7830s

Explicație:

1h=3600s

1min=60s

Answer 2

$2 \ h=2 \cdot 60 \ min=120 \ min =120 \cdot 60 \ s=7 \ 200 \ s; \\ 10 \ min=10 \cdot 60 \ s=600 \ s; \\ \Rightarrow 2 \ h \ 10 \ min \ 30 \ s= 7 \ 200 \ s+600 \ s+30 \ s=\boxed{7 \ 830 \ s}.$