7*x=672, 29 349/k=9, e/7 005=34

Первый участок длиной 120 метров лыжник прошёл за 2 минуты, а второй длиной 27 метров он прошёл за 1, 5 минут. найдите среднюю скорость движения лыжника на всём пути

СОчинение на тему Хочу рассказать о мифологическом герое...

Срочно!!! 

Двигаясь прямолинейно с постоянным ускорением 1, 5 м,с велосипедист уменьшил свою скорость от 15 м/с до 3 м/с. за какое время это произошло?

Put the verbs in brackets into the present simple or the present continuous. 1 A: ..... (you/know) that man over there? B: Actually, I do. He's Muriel's husband. 2 A: Are you doing anything tomorrow evening? B: Yes. I ...........................................(see) Jack at nine o'clock. 3 A: I..............................(see) you're feeling better. B: Yes, I am, thank you. 4 A: What's that noise? B: The people next door............................(have) a party. 5 A: Graham........................(have) a new computer. B: I know. I've already seen it. 6 A: This dress.......................................(not/fit) me any more. B: Why don't you buy a new one? 7 A: Your perfume ...............................(smell) nice. What is it? B: It's a new perfume called Sunshine. 8 A: What is Jane doing? B: She .................................(smell) the flowers in the garden. 9 A: What...........................................(you/look) at? B: Some photos I took during my holidays. They aren't very good, though. 10 A: You ............................(look) very pretty today. B: Thank you. I've just had my hair cut. 11 A: I ..........................(think) we're being followed. B: Don't be silly! It's just your imagination. 12 A: Is anything wrong? B: No. I ................................(just/think) about the party tonight. 13 A: This fabric ..................................(feel) like silk. B: It is silk, and it was very expensive. 14 A: What are you doing? B: I ..............................(feel) the radiator to see if it's getting warm. 15 A: She............................(be) generous, isn't she? B: Yes, she has never been a mean person. 16 A: He..................................(be) very quiet today, isn't he? B: Yes, I think he has some problems. 17 A: Would you like some cherries? B: Yes, please. I ...........................(love) cherries. They're my favourite fruit. 11 18 A: I'm sorry, but I ................................................... (not understand) what you mean. B: Shall I explain it again? 19 A: The children are making lots of noise today. B: I know, but they................................(have) fun. 20 A: This cake...................................(taste) awful. B: I think I forgot to put the sugar in it!