Barack Obama on his girls: "I have men with guns surrounding them at all times, which I'm perfectly happy with..." (c) Why can he protect his family with guns and I can't?
4 main reasons why Boston is the best place to live:Red Sox (Baseball), Patriots (Football) World Champions
Celtics the NBA (Basketball), Bruins Stanley Cup (Hockey)
4 main reasons why Boston is the best place to live:Red Sox (Baseball), Patriots (Football) World Champions
Celtics the NBA (Basketball), Bruins Stanley Cup (Hockey)
Спасибо, народ, кто ответил!!:leader: :lad: :kiss:
hey someone else took care of the other one too :shura: .
Plane 1: 600 km/h.
So in half an hour the plane would have travelled 300km. (600*1/2)
t = time in hours
300 + 600t
Plane 2: 750t
750t -(600t + 300)= 220
150t = 520
t = 52/15 hours
Conformation:
300 + 600*52/15 = 2380
750*52/15 = 2600
2600 - 2380 = 220.
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