Предмет: Математика, автор: KirillMalinowski

В первый день Андрей прочитал 5/7 книги, во второй день прочитал 1/6 , а в третий – оставшиеся 15 страниц. Сколько страниц в книге?​

Ответы

Автор ответа: vikavika0010101
2

1 день - 5/7

2 день - 1/6

3 день - 15 стр

Решение

1) 5/7 + 1/6 = 37/42 (стр) - прочитал за первые два дня.

2) 15 : 5 × 42 = 126 (стр) - во всей книги.

Ответ: 126 страниц во всей книги.

Автор ответа: thedumbestapp
1

1) 5/7 + 1/6 = 37/42

2) 15 : 5 × 42 = 126

Предыдущий вопрос
Следующий вопрос
Похожие вопросы
Предмет: Английский язык, автор: d82444810
My brother and I __________ (give) a lift into town by our mum yesterday.
*
This book ________________ (write) 200 years ago
*
My bike ________________ (steal) while I was inside a shop.
*
Sherlock Holmes stories ________________ (still / read) by a lot of people nowadays.
*
When ________________ (our house / build)?

*
In my favourite TV series, criminals ________________ (take) to court, so you can follow the court case.

*
The shoplifter ________________ (not / catch) because he ran away
*
My birthday presents ________________ (hide) out in the garden – but I soon found them!
*
The police didn’t find any of the robbers, so the crime ________________ (never / solve).​
1 год назад
Предмет: Физика, автор: 5ko7xm6
Скільки теплоти виділиться за 3 хв у провіднику з опором 20 Ом, якщо він підключений до джерела з напругою 24 В.​
1 год назад
Предмет: Английский язык, автор: timurjago
Всё что нужно сделать уже на картинке
1 год назад
Предмет: Алгебра, автор: Anton873240
Даю 35 баллов!!!!!!!!!!!
Помогите пожалуйста!!!!!!!!!!!!!
6 лет назад
Предмет: Английский язык, автор: nepomnashix
Grammar 2 Complete the sentences with the correct form of have to / don't have to or must / mustn't.

Sophie_________ get up early tomorrow. She's catching a train at 6 am.
Jerry___________ go to Mary's party, but he can go if he wants to.
You___________ smoke in the school. It's against the rules.
William_____________ work harder if he wants to pass his exams.
'Do I______________ show my passport at the airport?' 'Yes, you do.'
You___________ be 16 before you can get married.

3. Circle the correct alternatives.

Our local social club (a) opens / opened five years ago. It's the (b) best / better place to go in the evening. There aren't too (c) much / many people there, and it's (d) more / much interesting than staying at home. In the club, children under 16 (e) can't / aren't allowed to go into the bar by themselves. If they want to enter the bar, they (f) can / have to go with an adult, and, of course, they (g) aren't allowed / mustn't to drink alcohol. There (h) is / are a family room, and it's (i) easyer / easier to get a drink in there. Children (j) don't have to / mustn't be with an adult to go into that room. There is also a members' room. If I (k) want / wanted to become a member, I'd have to pay (l) many / a lot of money. Of course, you (m) aren't allowed / mustn't go in there ifyou aren't a member. A few years ago, people (n) could / were allowed smoke in the bar, but they (o) aren't allowed / can't to smoke there now. And you (p) can't / don't have to smoke in the members' room. If anybody wants to smoke, they (q) will must / must go outside.
6 лет назад