Предмет: Математика, автор: травка4

Какую часть суток составляет 1920с,2880с,3456с

Ответы

Автор ответа: kir3740

0

В сутках 24*60*60 = 86400 сек

1920/86400 = 1/45
2880/86400 = 1/30
3456/86400 = 1/25

Предыдущий вопрос

Следующий вопрос

Интересные вопросы

Предмет: Английский язык, автор: tenkovskaya07

Даю 20 баллов! Нужны только три последних предложения! Срочно!!!

6 лет назад

Предмет: Английский язык, автор: di02072

1 Complete the sentences with the correct form of the verbs in brackets. Example: I went (go) to the cinema last night.
1 What _______ you _______ (buy) at the supermarket yesterday?
2 The teacher ________ (not be) very happy with my homework last week.
3 Where _______ your brother _______ (work) at the moment?
4 _______ you ever _______ (see) a James Bond film?
5 The weather was lovely yesterday so we _______ (walk) to work.
6 Hi! I _______ (wait) for the bus. It’s very late.
7 He always _______ (take) the train to work.
8 My friend has _______ (travel) all over the world.
9 _______ you _______ (be) to a music concert before?
10 A What are your plans for the holiday? B I _______ (fly) to Malta with my boyfriend.
11 Kate _______ (wear) her new dress to Dave’s party last Friday.
12 They _______ (not have) a holiday next year because Simon has lost his job.
13 They _______ (have) a holiday with their children next Christmas.
14 I _______ (speak) a lot of English in England last summer.
15 She _______ (not finish) all her work yesterday.

2 Match the words with the same sound. away juice peas ketchup cinema bus mushrooms tea park yesterday chips Example: lettuce chips

1 key _______

2 jazz _______

3 tree _______

4 train _______

5 car _______

6 zebra _______

7 yacht _______

8 snake _______

9 up _______

10 shower _______

3 Complete the sentences with one word. Example: I met him at the railway station this morning.

1 Do you _______ a musical instrument?

2 I was so tired last night. I _______ for ten hours!

3 Have you been to the new department _______ in town? They sell everything.

4 It’s very cold in their flat. Do they have any _______ heating?

5 I go to the sports _______ every Saturday morning with my children.

6 Bill and Sheila were angry because not many people _______ photos at their wedding.

7 Did you _______ a table at the restaurant? It’s usually very busy.

8 It’s much colder downstairs than it is _______.

9 What did you have _______ breakfast this morning?

10 Did you put the milk in the _______? It isn’t very cold.

6 лет назад

Предмет: Алгебра, автор: bekhruzyodoshev36

сколько трехзначных чисел можно составить из цифр 4 5 8. Если можно эти цифры повторять

6 лет назад

Предмет: Алгебра, автор: Olia69

1/ (x-3)^2 - 3/x-3 - 4 =0

9 лет назад

Предмет: Алгебра, автор: orlovawit24

2-4у+у^2=-1. помогите пожалуйста

9 лет назад