Сумма трех последовательных нечетных натуральных чисел равна 669. Найдите эти числа.

Сумма трех последовательных нечетных натуральных чисел равна 669. Найдите эти числа.
- Предмет:
  Алгебра
- Автор:
  damianwtny
- 5 лет назад

Ответы 2

Обозначим меньшее из этих чисел за N. Тогда эти числа можно записать как N, N+2, N+4. По условию, N+(N+2)+(N+4)=669 ⇒ 3N=663 ⇒ N=221.Значит, числа равны 221, 223, 225.
- Автор:
  talan
- 5 лет назад
- 0
(2х+1)+(2х+1+2)+(2х+1+4)=6696х+9=6696х=660х=110тогда числа (2*110+1)=221, 223, 225
- Автор:
  juliánwalsh
- 5 лет назад
- 0
Добавить свой ответ

Еще вопросы

РЕБЯТА!ПОМОГИТЕ ПЕРЕВЕСТИ СО СМЫСЛОМ!!!СРОЧНО НУЖНО!!!!!!

A) She lives in splendid palaces and meets thousands of people every year, but
in her private life, Britain's Queen Elizabeth II leads an ordinary life.

B) Some 339
people work full time for her and 250 part time - but fewer than a dozen come
in a regular personal contact with her, said Brian Hoey, royal expert and
author of Life With the Queen .

C) During a regular day at Buckingham Palace, her
official London residence, Queen Elizabeth wakes up at 7.30 am and has a cup of tea with milk . Her bedside
radio is tuned to BBC Radio Four as she
likes to listen to the influential Today programme.

D) A great lover of horses , Queen Elizabeth enjoys
reading the Racing Post newspaper at breakfast with her husband Prince Philip.

E) At 9.30 am, she meets her private secretary who has
already gone through the correspondence.
Together, they go through the day’s
programme – receiving a new ambassador, visits to hospitals, schools or
factories.

F) Occasionally, she invites a
handful of famous faces, artists or business executives to lunch. Sometimes,
other royals are invited to join her at the palace. However, she is more likely
to eat a light lunch alone. “It’s not an informal occasion, with the children saying,
‘Mum, can I join you?’ The queen will send her page with a message to invite
them,” Hoey said. Her daughter Princess Anne curtseys and kisses her, while her
sons Princes Charles, Andrew and Edward, bow, then kiss her hand, then kiss her
on the cheek.

G) Every afternoon at 2.30pm, the
queen goes for a walk in the palace grounds.“The rule is that if anybody is in
the garden, apart from the gardeners, they must leave. Nobody is allowed to
talk to her unless she speaks first. She likes to be left on her own because
it’s her thinking time,” Hoey said. The rest of the afternoon is devoted to the
queen’s social duties. She is patron of more than 620 organizations and charities
and charities 1,1-million people have
been to her famous summer garden parties. Since becoming queen in 1952, Queen
Elizabeth has conferred over 387,700
awards.

H) Every Tuesday at 6.30pm, she
gives an audience to the British prime minister to discuss affairs of state.“Nobody
else is present, no notes are taken, no prime minister has ever revealed what
goes on,” Hoey said.

I) Queen Elizabeth, if she has no
engagement, spends her evenings in her private rooms. She fills in a crossword,
often watches television with supper on a tray, and retires to bed at around
11pm. However, the lights stay on until midnight as the queen pores over
confidential government papers which are brought to her every day, no matter
where in the world she is, in traditional red boxes.
- Предмет:
  Английский язык
- Автор:
  loser4pnn
- 5 лет назад
- Ответов:
  
  1
- Смотреть
мраморная колонна массой 500т имеет площадью основания 12,5 квадратных метров.Определить давление коллоны на опору.Ответ выразить в кПа
- Предмет:
  Физика
- Автор:
  leroyvillegas
- 5 лет назад
- Ответов:
  
  1
- Смотреть
Помогите.
Рассмотрите рисунок. Подпишите его. Опишите, как осуществляется процесс всасывания.
- Предмет:
  Биология
- Автор:
  annbautista
- 5 лет назад
- Ответов:
  
  1
- Смотреть
Электровоз , работающий при напряжении U=3кВ и потреблявший силу тока I=1.6кА , развивает при скорости v=43км/ч силу тяги F=340кН. Каков КПД двигателей электровоза?
- Предмет:
  Физика
- Автор:
  claudiamolina
- 5 лет назад
- Ответов:
  
  0
- Смотреть

Сумма трех последовательных нечетных натуральных чисел равна 669. Найдите эти числа.

Ответы 2

Топ пользователей