-
Розв'яжи задачу. Книжка і ручка разом коштують 14 грн, причому книжка коштує у 6 разів більше, ніж ручка. Скільки коштує книжка?
-
Предмет:
Математика -
Автор:
billie41 - 5 лет назад
-
Ответы 1
-
Нехай ручка коштує х грн, тоді книжка коштує 6х грн. За умовою задачі разом вони коштують 14 грн. Маємо рівняння 6x + x =147x=14x=14/7x=2 (грн) - коштує ручка2*6=12 (грн) - коштує книжка.Перевірка: 12+2=14Відповідь: 12 грн.
-
Автор:
gypsy0tpn - 5 лет назад
-
0
-
-
Добавить свой ответ
Еще вопросы
-
1. After he … (decide / give up) smoking, he …. (begin / carry) a pocket of sweets in his pocket… ………
(prevent) him from smoking.
2. He must have a break. He …………………………………………….. (drive) for hours.
3. My cousin, Tom …… (just / finish) his military service. He …… (look) for a good job since then.
Yesterday he ……(receive) a letter from his old boss. In his letter, he says he needs him again, but Tom
… (not / want / work) with him. Because they … (have) some problems before he ….. (leave) his job.
4. After they ……(learn) the new words last term, they …… (start) the course book.
5. Please don’t disturb us, we ……………………………………… (record) the Director’s conversation.
6. Just as I ………………. (get up) my brother …………………….. (take) a photo of me.
7. Steve ……. (have) a lot of girlfriends by the time he ………………………….. (get) married.
8. We are quite anxious about Jane now. She ……(leave) home a fortnight ago to spend her vacation with
her friends but she …………….. (write) to us yet.
9. They ………………. (live) in bad conditions since the war ………………… (start).
10. Before I …….. (come) to the USA, I ………………... (study) English in my own country.
11. I …………………………………….. (not / have) any trouble with my car so far.
12. The building at the top of the hill ……. (build) in 1920. A number of changes …. (make) since then.
13. When the boss ……… (come) in the office, the letters …….. (type) by the secretary.
14. Barbara is a writer. She … already …… (write) several novels. A few years ago, she …… (give) the
Pulitzer Prize.
15. Tom’s father ……. (go / swim) everyday. He says swimming … (be) really good to keep fit.
16. Everybody …… (know) him as an honest man since he ……………………. (start / live) here.
17. A: What is the crowd?
B: A little boy … (kidnap) by two men and the police …… (look) for them along the river since then.
18. All dinner …… (eat) before they …………… (finish) the conersation.
19. As it ……………….. (rain), a car accident …………………………. (happen) on Main Street.
20. The bills …………………………………….. (pay) yet.
21. The tourits …. (wait) for hours at the airport by the time their plane ………… (take off).
22. Most of the houses … (pull) down last month, but they ……(not / touch) the old shop at the corner yet.
23. He ………. (be) in different countries before he …………. (arrest) by the police-
Предмет:
Английский язык -
Автор:
ellison15 - 5 лет назад
-
Ответов:
1 -
Смотреть
-
-
Краткое но чёткое содержание( , главные события , герои , о чём книга , рассказа( Бежин Л
-
Предмет:
Литература -
Автор:
phillip - 5 лет назад
-
Ответов:
1 -
Смотреть
-
-
Какова скорость изменения магнитного потока (мВб/с) через катушку с индуктивностью , если на катушке возникает ЭДС индукции в 14мВ? А)25 В)2,5 С) 5 D) 7,5 E)98
-
Предмет:
Физика -
Автор:
ferrisrobbins - 5 лет назад
-
Ответов:
1 -
Смотреть
-
-
A вверху в степени n-2 внизу в индексе n+4 как такое рещить .подробное решение
-
Предмет:
Математика -
Автор:
samarapratt - 5 лет назад
-
Ответов:
3 -
Смотреть
-
Топ пользователей
-
Fedoseewa27
35894 -
Askold
2792 -
Pikachu
2228 -
hobbesbowers
2116 -
kaylynnbarron676
1818 -
女fei
1240 -
yulia-kaplina
1156 -
Poinntt
946 -
Bars
930 -
Queenmagic18
754
How much to ban the user?
1 hour
1 day
100 years