Предмет: Математика, автор: vovanazarec15

10. Для сплаву беруть одну частину свинцю і три частини олова. Скільки
грамів свинцю й олова міститься в 600 г сплаву?

Ответы

Автор ответа: bogdanlasok998
0

Ответ:

1)600÷4×1=150(гр)-свинець

2)600÷4×3=450(гр)-олово

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ПОМОГИТЕ ОЧЕНЬ СРОЧНО ДАЮ 80БАЛОВ
Завдання за правилами утворення пасивного стану дієслів Виберіть правильний варіант форми дієслова в дужках. Спочатку перегляньте всі питання й визначте час (Present Simple Passive / Past Simple Passive / Present Perfect Passive). Звертайте увагу на контекст речення й обставини часу
1. The picture (not to paint) yet.
а)hasn't been painted
б)wasn't painted
в)isn't painted
г)not painted
2. Toys (to sell) in this store usually.
а)sell
б)are sold
в)were sold
г)have been sold
3. The newspaper (not to read) by her two hours ago.
а)hasn't been read
б)isn't read
в)wasn't read
г)didn't read
4. This place (to visit) already.
а)has been visited
б)is visited
в)visited
г)was visited
5. The story (to write) in 2012.
а)has been written
б)was written
в)is written
г)wrote
6. Every day I (to listen) to by many people.
а)listen
б)am listened
в)have been listened
г)was listened
7. Flowers ( to sell) lately.
а)have been sold
б)are sold
в)were sold
г)sold
8. The exercises (to do) every day by them.
а)does
б)do
в)is done
г)are done
9. The vegetables (not to buy) often by her.
а)aren't bought
б)aren't buy
в)haven't been bought
г)weren't bought
10. The exercise (to do) by him yesterday.
а)is done
б)has been done
в)was done
г)did
11. Exercises (to do) at last.
а)have been done
б)have done
в)are did
г)did
12. He (to give) a present last week.
а)gave
б)was given
в)is given
г)has been given