Предмет: Математика, автор: юла6

чтобы покормить своих птенцов,пара скварцов трудится по 17 часов в сутки и скармливает скворчатам до20 насекомыхза 1 час сколько вредных насекомых уничтожат колония из 50 пар скварцов за период вскармливания птенцов, который. длится 17 дней

Ответы

Автор ответа: GlebGor1998

Колония из 50 пар скворцов уничтожит 20*17*50*17= 289000 вредных насекомых

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: Блинь

Помогите пожалуйста заранее спасибо срочнооо

1 год назад

Предмет: Английский язык, автор: EinTod

II. Read the article about the long-distance teacher. Are sentences True or False?

THE LONG-DISTANCE TEACHER

Mr Frank Garret, 65, is a schoolteacher. He is English, but he lives in France, in the village of Yerville. Mr Garret lives in France, but he works in England. Every Monday he leaves home at 2.30 in the morning and drives 101 miles from his village to Boulogne, where he leaves his car and goes by boat to England. He teaches French from 9.00 in the morning to 3.30 in the afternoon, and then he leaves school. He arrives home at 9.30 in the evening. The journey there and back isn’t expensive. Mr Garret works in England only one day a week. And what does he do on the other days? He teaches English! He has a class of French students in Yerville. He says, ‘I love my job in England and I love my home in France. I’m a happy man.’

1 Mr Garret is 65 years old. ___

2 Mr Garret is French. ___

3 Mr Garret has a house in France. ___

4 Mr Garret goes by bus to Boulogne. ___

5 Mr Garret learns French in England. ___

6 Mr Garret leaves school at 9.30. ___

7 Mr Garret’s journey is cheap. ___

8 Mr Garret works in France one day a week. ___

9 Mr Garret teaches French in Yerville. ___

10 Mr Garret likes working in England and living in France. ___

III. Choose the right form and fill in the blanks

They just (to go) to the country.

If I (to see) her tomorrow, I (to ask) her about it.

Tomorrow the weather (to be) sunny.

Listen! He (to sing) a song.

I (to be) hungry.

When we (to come) home yesterday, my mother (to watch) TV.

My friends often (to cook) dinner.

At 8 she (to watch) TV and by 8 o’clock yesterday she (to play) computer games.

The telegram (to get) yesterday.

His sister (to be) a teacher 2 years ago.

1 год назад

Предмет: Русский язык, автор: kida3

Назови гласные и согласные звуки.В чём их отличие?

1 год назад

Предмет: Русский язык, автор: coolpituganova

Составить 2 предложения из слов Селедка,Указка. Подчеркнуть грамматическую основу предложения!

7 лет назад

Предмет: Музыка, автор: flower3234

Кто написал самую первую русскую оперу?

7 лет назад