Question

2 hours and 10 minutes converted into seconds is _____. 78,000 s 7,800 s 6,400 s 2,160 s

Answer 1

1min = 60s

1h = 60min = 60 · 60s = 3,600s

2h + 10min = 2 · 3,600s + 10 · 60s = 7,200s + 600s = 7,800s

Answer 2

`Hi \\ \\ 2h= 2\\ot h.(3600s)/(1\\ot h) =\boxed{7.200s } \\ \\ 10min= 10\\ot min.(60s)/(1\\ot min) =\boxed{600s} \\ \\ ~~2h+10min \\ \overbrace{7.200s+600s} \\ ~\overbrace{~~~~\boxed{7.800s}~~~~} \\ \\ =\ \textgreater \ \boxed{\boxed{2h10min=7.800s}} \\ \\ \\ \mathbb{xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx} \\~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~Good~studies!! \\`