Предмет: Математика, автор: koneva18092001

решите уравнение х+2х+...+10х=5500

Ответы

Автор ответа: Аноним

0

х+2х+...+10х=5500
55x=5500
x=5500:55
x=100

Автор ответа: mmb1

0

х+2х+...+10х=5500
10x+x + 9x+2x+...=5500
5*11x=5500
55x=5500
x=100

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: Английский язык, автор: no66348

Fill in the blanks with the correct word for these second conditional

sentences.

 1. If I (have) more money, I would buy a car.

2. Is she (work) on Saturday, she would need to take the bus.

3. If Dan played soccer, he (need) special shoes.

4. I would study more often if I (take) that class.

5. She (drive) is she had a car.

6. If Mary (go) to bed earlier, she would not be so tired in the

morning.

7. If I could meet anyone, I the Prime Minister.

8. I (no, go) to that party if I were you.

9. If we (meet) on Friday afternoons, we could leave early.

10. If the car worked, we (can, drive).

11. I would (buy) a laptop if I had more money.

12. They (no, read) as much if they had a television.

13. If it rained more, would she (plant) more flowers?

14. Where would you (visit) if you could go anywhere in the

world?

15. I wouldn’t work if I (have) more money.

16. Rachel (wake up) earlier if she had an alarm clock. 17. Would you (play) video games if you had more time?

18. Who would you (meet) if you could meet anyone?

19. I would sleep later on Sunday if I (have) children.

20. The students wouldn’t take so long to finish their tests if

they (can, use) calculators.

21. Where would you (live) if you could live anywhere?

22. I wouldn't eat that if I you.

23. Perla wouldn't work if she (no, have) to.

24. If you lived in France, you (maybe, speak) French.

25. What would you do if you (be) taller?

26. Would you (wear) that hat?

27. I would love to (meet) your wife.

28. My boss would never (allow) me to leave early on Friday

afternoons.

29. Would you live at home if you (have) a brother?

30. When would you wake up if you (no, need) to work.

6 лет назад

Предмет: Математика, автор: Аноним

Подумай подумай и ответь по в коробки по одному красному шару и остальные синие в первой коробке 15 шаров а во второй 120 шаров в третий 200 шаров из какой коробке нужно достать чары чтобы было больше шансов достать 1 красный не заглядывая в коробку

6 лет назад

Предмет: Алгебра, автор: kemmis8

ПЖ ПЖ ПЖ ПЖ ПЖ помогите упростить выражение:1)tga*ctga-cos²a 2)cosa-cosa*sin²a

6 лет назад

Предмет: Алгебра, автор: yanochkadina

1) Решить систему:

4х+3у=27

2х-7у=-63

2) решите систему:

Дробь: х+1/у-з =1

(х+1)(у-3)=4

3) Решить систему:

17-х больше или равно 6х+10

5х-4>2х-13

9 лет назад

Предмет: Алгебра, автор: 6aT9I65

1+tg(п+a)ctg(п/2-a) и

(sin a + cos a)^2+1-2sin a • cos a

a-альфа
п-постоянное число пи

9 лет назад