Предмет: Математика, автор: cangnn

за 7 дней в столовой 21 кг масла . На сколько расхода хватит 36 кг масла ? На сколько дней хватило бы этого масла' если бы каждый день расходовали на 1 кг больше

Ответы

Автор ответа: янка73
0
1)21:7=3(кг)-израсходуют масла за 1 день
2)36:3=12(дней)-будут расходовать 36 кг.масла
3)3 кг+1 кг =4(кг)-израсходуют масла за 1 день,если будут расходовать на 1 кг больше
4)36:4=9(дней)-будут расходовать 36 кг.масла,если бы каждый день расходовали на 1 кг больше.
Ответ:12 и 9 дней
Узнаём сколько нужно масла на 1 день:  21:7=3 кг -на 1 день. 
Узнаём сколько масла нужно на 1 день при 36 кг:  36:3=12 дней. 
Ну и + 1 кг:4 кг. 
Делим 36 на 4 будет 9. 
Ответ:при таком расходе (на 1 кг больше) масла хватит на 9 дней.

Автор ответа: Аноним
0
1)найдём дневную норму21:7=3 кг
2)на сколько дней хватит 36 л?36:3=12 дней
3) если расходовать на 1 кг больше,дневная норма будет3 +1=4 кг4)на сколько хвати ло бы масла при новой норме?
36:4= 9 дней
Похожие вопросы
Предмет: Английский язык, автор: RealistIar
ПОМОГИТЕ ПОЖАЛУЙСТА С АНГЛИЙСКИМ СРОЧНО

1. Complete the sentences. Make new words from the words in capital letters.


1.A lot of people like to be ____________________ because it makes them feel better. FASHION


2. Wearing ____________________ and other types of jewellery can be a sign that belong to a group, for example Goths. EAR


3. UNICEF is an ________________which looks after children in underdeveloped countries. ORGANISE


4. People usually join political parties because they ________________ with their views on politics, economics and social issues. IDENTITY


5. Some young people join gangs because they’re looking for __________________ ACCEPT


2. Complete the sentences with the correct verbs below.


Bump calm fool get go hang put


1. In hot weather, the kids usually ____________________ around the village square.


2. When you live in a big city, you have to ____________________ up with noise, traffic and pollution.


3. You can ___________________ into an old friend from school anywhere – even on holiday.


4. The doctor tried to ____________________ the patients down.


5. He is often punished by his teacher because he likes to ____________________ around.


6. Teenagers often do not ____________________ on with their younger brothers and sisters.


7. Which is the most embarrassing place where your mobile can ____________________ off ?


3. Complete the sentences with the correct question tags.


1. He won't tell her, ___________?


2. The bike isn't in the garage, ________?


3. John didn't recognize me, _____________?


4. Lena went to the library yesterday, _________?


5. You are Mary , ______________?


6. Buses pollute the environment, _____?


7. Mr. Jason has been to Scotland recently, __________?


8. The trip is very expensive, ________?


9. Mr Adams is from Ireland, ___________?


10. John had a red car, ________________?


4. Fill in the gaps with the Present Perfect or Present Perfect Continuous forms of the verbs in brackets.


1. Colin ____________________ (write) songs since 2001.


2. Colin ____________________ (write) hundreds of songs.


3. Colin ____________________ (go out) with Tracy for about a year.


4. Colin ____________________ (go out) for a drink with Tracy.


5. Tracy ____________________ (play) in public many times.


6. Tracy ____________________ (play) the piano since she was six.


7. Stephan ____________________ (act) in three music videos.


8. Stephan ____________________ (act) in a music video all day.

5. Complete the gaps with a\an, the or zero article.


1_____ men are fond of hunting. 2 _____ red is my favourite colour. 3. He became___ doctor. 4______ highest mountians are in _____ Asia. 5. My uncle used to be ____ dentist before he retired. 6 London is ___ biggest city in Britain. 7 It was early morning on ___ Friday, the thirteenth of ___ December. 8 There are special schools for __ blind and ___ deaf.


6. Write a short essay about your future ( about 12 sentences).. Start:


….I want to be ________________________________________________________________________________________________________________________________________________________________________