Предмет: Алгебра, автор: Kykyshk0

Сумма четырех последовательных целых чисел равна 2. Найдите эти числа.

Ответы

Автор ответа: dtnth

Пусть первое целое число х, тогда следующие целые числа х+1, х+2, х+3. По условию задачи составляем уравнение:
х+(х+1)+(х+2)+(х+3)=2
х+х+1+х+2+х+3=2
4х+4=0
х+1=0
х=-1
х+1=-1+1=0
х+2=-1+2=1
х+3=-1+3=2
ответ: -1;0;1; 2

Предыдущий вопрос

Следующий вопрос

Похожие вопросы

Предмет: История, автор: sksksgtdtd

Почему именно англичанам удалось победить в «колониальной гонке», и что им дал захват Индии?

6 лет назад

Предмет: Английский язык, автор: Гуля551

Помогите пожалуйста с английским!!! 100 баллов

181. I stopped _____ my book and went to bed.
a) to read
b) read
c) will read
d) reading
e) is read
182.My teachers always expected me _____ well in exams.
a) Did
b) Doing
c) Do
d) To do
e) Does
183.Let me _____ for the meal. You paid last time.
a) pay
b) to pay
c) paid
d) paying
e) is pay
184.The dentist told me _____ more careful when I brush my teeth.
a) will be
b) being
c) to be
d) be
e) was
185.I never liked _____ to church when I was a child.
a) going
b) to do
c) went
d) go
e) gone
186. Botany is
a) a herb
b) a world
c) animals
d) a science
e) a philosophy
187.The room where we eat
a) a hall
b) a kitchen
c) a bedroom
d) a bathroom
e) a living – room
188.Which word is the common one for this group of words?
a) steel products
b) iron products
c) machinery
d) industry
e) chemicals
189.Which word is given in the plural form?
a) capital
b) country
c) industries
d) mountain
e) population
190.Which word is the synonym to the word “nice”?
a) bad
b) good
c) large
d) expensive
e) beautiful
191.Which word is the antonym to the word “warm’’
a) hot
b) cold
c) long
d) cool
e) great
192.Which word is the common one for this group of words?
a) teacher
b) doctor
c) lawyer
d) profession
e) engineer
193.Which word is the synonym to the word “doctor”?
a) physician
b) patient
c) teacher
d) therapeutist
e) nurse
194.She had ... small bag in her hand.
a) the
b) a
c) an
d) -
e) so
195.She looked at ... road.
a) the
b) a
c) an
d) -
e) and
196.She repeated ... words again.
a) a
b) an
c) -
d) the
e) and
197.Hillary has ___ beautiful hair.
a) a
b) the
c) an
d) -
e) but
198.It was ... strange question.
a) the
b) a
c) an
d) -
e) then
199.The speed limit is 100 kilometers ___ hour.
a) the
b) an
c) -
d) by
e) a
200.Which word is the extra one for this group of words?
a) student
b) nurse
c) physician
d) therapeutist
e) surgeon
201. Yesterday I found … wallet in the street
a) the
b) an
c) -
d) by
e) a
202.It is 5 o’clock in … morning.
a) the
b) an
c) -
d) by
e) a
203.This table is made of … wood.
a) the
b) an
c) -
d) by
e) a
204.In which topic people tell of their family, their occupation, old and hobby?
a) my pets
b) about myself
c) my future profession
d) university
e) cities
205.She is the daughter of my mother. She is my…
a) aunt
b) sister
d) cousi
c) grandmother
e) niece
206.He is the brother of my mother. He is my…
a) nephew
b) son
d) cousin
c) uncle
e) father
207.The man _____ was here is a doctor.
a) who
b) when
d) whom
c) that
e) what
208. _____ eats must pay.
a) that
b) when
d) whom
c) who
e) what
209.I … at 7 o’clock in the morning
a) get up
b) has breakfast
c) go to bed
d) play chess
e) go to school
210.In the morning we have…
a) breakfast
b) lunch
c) dinner
d) supper
e) fast food
211. The lessons begin at… in the morning.
a) 8:00
b) 12:30
c) 15:00
d) 20:30
e) 13:00
212. I have books _____ I must read.
a) whom
b) where
c) who
d) that
e) where
213. Show me _____ you have in your hand.
a) whom
b) where
c) who
d) that
e) where
214. A friend of _____ gave me that toy.
a) mine
b) your
c) her
d) his
e) its
215. Every season is beautiful in _____ own way.
a) mine
b) your
c) her
d) his
e) its

6 лет назад

Предмет: Математика, автор: arina203656

384*735 41292:124
В столбик пожалуйста :(

6 лет назад

Предмет: Алгебра, автор: Dewolf

Помогите решить систему уравнений методом подстановки!
a) х=у-2 б)х^2-xy=-1
х^2+y^2=4 y-x=1

9 лет назад

Предмет: Геометрия, автор: aushkul

Большее основание трапеции является диаметром окружности радиуса корень из 2-корень из 3, а меньшее является хордой, стягивающей дугу в 120 градусов этой окружности. Найдите площадь трапеции

9 лет назад