Предмет: Алгебра, автор: 565776

Расстояние между городами равно 1200 км .Машина должна преодолеть его за t ч. Задайте формулой зависимость скорости машины v от времени t. 1)V1200 t 2)V=1200/t 3)t1200/V 4)Vt=1200.

Ответы

Автор ответа: sofialandynya

Чтобы найти скорость, необходимо разделить расстояние на время. В данной задачи S (расстояние) = 1200 км, а время - t. Следовательно подставляем данные значения в формулу V=S/t и получаем V=1200/t.
Ответ: 2

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Русский язык, автор: Аноним

Какой падеж у слова тебя
Срочно

5 лет назад

Предмет: Английский язык, автор: Raminna

Ex.1 Present Simple or Continuous? Choose the correct alternative.

1 Today she ’s spending/spends time with her grandmother.
2 They usually are going/go to the gym on Sundays.
3 We ’re having/have a barbecue later on. Do you want to come?
4 No, she can’t answer the phone, she has/is having a shower.
5 I always have/am having a coffee before I ’m leaving/leave for work in the morning. 6 They sometimes fly/are flying to Sweden, but usually they are going/go by boat.
7 Where are you? I ’m sitting/sit outside in the sunshine!
8 He always brings/is bringing a monolingual dictionary to his English class.
9. Are you having/ do you have a motorbike?
10. I ’m staying/stay in a hotel near the sea.
11. I’d like to buy this coat. How much is it costing/does it cost?
12. What are you doing/do you do?
13. I’m usually getting/get up at 6.00.
14. This book is difficult. I’m not understanding/don’t understand it.
15. I ‘m watching/watch a lot of TV every night.
16. Excuse me. Are you knowing/Do you know the way to the museum?
17. Henry's letters are coming/come by air mail.
18. We are building/build many roads nowadays.
19. They usually catch/are catching the ten o'clock bus. 20. He’s leaving/leaves London on Monday morning.

Ex.2. VI. Present Simple or Continuous? Open the brackets. Don’t use contracted forms.

1. John lives and works in Florida but he ... (have) a holiday in England at the moment. 2. I wonder why the neighbor's dog ... (bark) again. Maybe there is a burglar!
3. Alan ... (get up) at seven o'clock every morning.
4. Then he ... (go) to have a shower before breakfast.
5. Then he ... (drive) to the beach and stays all day.
6. He ... (not/work) because he won the lottery last year.
7. Why ... (you/learn) English this year?
8. I ... (live) with my sister for a month because she is pregnant and I can help her. 9. Tell me – what ... (you/wear). That way, I will recognise you at the station.
10. Jane is in the kitchen and very stressed! She ... (cook) dinner for 20 people. 11. She ... (run) because she's late for her lesson.
12. Our teacher always ... (give) us lots of homework.
13. We ... (not want) to go to the concert.
14. What time ... (you / meet) Pete tomorrow?
15. I ... (not work) today. I'm on holiday.
16. People ... (speak) English in Jamaica.
17. Archie ... (not use) his computer at the moment.
18. ... (Tony / live) near the park?
19. Look, a man ... across the street. (run)
20. Listen: Sting ...! (sing)

Ex.3. VII. Present Simple or Continuous? Open the brackets. Don’t use contracted forms.

1. What is he doing? He ... at his desk. (sit)
2. Listen, someone ... at the door. (knock)
3. On my way home I usually ... to drink a cup of coffee. (stop) 4. Architects ... plans of the buildings. (make)
5. Look at Betty: she ... the piano. (play)
6. At this moment I ... my pupils' exercises. (correct)
7. Where are you? I ... my lessons in the study. (prepare)
8. She ... a lot of money. (earn)
9. Chris ... near the table. (stand)
10. We often ... tea for breakfast. (take)
11. William ... to our workshop on Mondays. (come)
12. Let's wait a moment still. Tom ... soon. (come)
13. I must run home, mother ... for me. (wait)
14. The telephone often ... during supper. (ring)
15. Stephen ... a cigarette now. (smoke)
16. It ... hard at the moment. (snow)
17. I always ... to my office early. (go)
18. Two and two ... four. (make)
19. What are you doing here? I ... for my book. (look) 20. It ... in autumn. (rain)

Ex.4. VIII. Put the verbs in brackets in the correct form (present simple or present continuous)

A. Next week, my friends and I ... (go) camping in the woods. I ... (organize) the food, because I ... (like) cooking. Dave ... (have) a big car with a trailer, so he ... (plan) the transportation. Sam ... (bring) the tent – he ... (go) camping every year, so he ... (have) a great tent and lots of other equipment. My wife ... (think) we're crazy. She (like) ... holidays in comfortable hotels, so she ... (take) a trip to Paris instead.
B. Harold Black's a famous pianist. He ... (give) two or three concerts every week. He ... (travel) a lot and this week he's in New York. He ... (stay) at an expensive hotel. He's at his hotel now. He ... (have) his breakfast in the dining-room. He ... (drink) a cup of coffee and he ... (read) a newspaper. Harold's always very busy. He ... (play) the piano regularly. He ... (practise) for four hours every day. He ... (go) to bed late and he always ... (get up) early. But he sometimes ... (get) dressed too quickly, and this morning he ... (wear) one blue sock and one red one!

5 лет назад

Предмет: Математика, автор: gudkovoleg374

Сколько будет 1*89:9

5 лет назад

Предмет: Математика, автор: tennisist2

4 3/5:( 1 2/3- 3 1/5) +1 1/8

9 лет назад

Предмет: Биология, автор: Жанат111

Моллюски строение раковины пищеварительную дыхательную

9 лет назад