Home
О нас
Products
Services
Регистрация
Войти
Поиск
uwhsbулу
@uwhsbулу
July 2022
1
0
Report
Решите уровнени пж
2/3*(4,2-9,6х)=2,8*(2/7-1/2х)
Please enter comments
Please enter your name.
Please enter the correct email address.
Agree to
terms of service
You must agree before submitting.
Send
Answers & Comments
zhenyaM2002
Verified answer
2/3 * (4,2 - 9,6х) = 2,8 * (2/7 - 1/2 *х )
2/3 * 4,2 - 2/3 * 9,6х = 2,8 * 2/7 - 2,8 * 1/2 * х
2/3 * 21/5 - 2/3 * 48/5 *х = 14/5 * 2/7 - 14/5 * 1/2 *х
14/5 - 32/5 * х = 4/5 - 7/5 *х
2,8 - 6,4х = 0,8 - 1,4х
-6,4х +1,4х = 0,8 - 2,8
-5х = -2
х=(-2)/(-5)
х=0,4
проверим:
2/3 * ( 4,2 - 9,6 * 0,4) = 2,8 *( 2/7 - 1/2 * 0,4)
2/3 * ( 4,20 - 3,84) = 2,8 * (2/7 - 0,2)
2/3 * 0,36 = 2,8 * ( 20/70 - 14/70)
2/3 * 9/25 = 14/5 * 6/70
(2*3)/(1*25) = (14*3)/(5*35)
6/25 = (2*3)/(5*5)
6/25=6/25
0,24=0,24
1 votes
Thanks 1
рекомендуемые вопросы
rarrrrrrrr
August 2022 | 0 Ответы
o chem dolzhny pozabotitsya v pervuyu ochered vzroslye pri organizacionnom vyvoze n
danilarsentev
August 2022 | 0 Ответы
est dva stanka na kotoryh vypuskayut odinakovye zapchasti odin proizvodit a zapcha
myachina8
August 2022 | 0 Ответы
najti po grafiku otnoshenie v3v1 v otvetah napisano 9 no nuzhno reshenie
ydpmn7cn6w
August 2022 | 0 Ответы
Choose the correct preposition: 1.I am fond (out,of,from) literature. 2.where ar...
millermilena658
August 2022 | 0 Ответы
opredelite kak sozdavalas i kto sozdaval arabskoe gosudarstvo v kracii
MrZooM222
August 2022 | 0 Ответы
ch ajtmanov v rasskaze krasnoe yabloko ispolzuet metod rasskaz v rasskaze opi
timobila47
August 2022 | 0 Ответы
kakovo bylo naznachenie kazhdoj iz chastej vizantijskogo hrama pomogite pozhalujsta
ivanyyaremkiv
August 2022 | 0 Ответы
moment. 6....
pozhalujsta8b98a56c0152a07b8f4cbcd89aa2f01e 97513
sarvinozwakirjanova
August 2022 | 0 Ответы
pomogite pozhalusto pzha519d7eb8246a08ab0df06cc59e9dedb 6631
×
Report "2х)..."
Your name
Email
Reason
-Select Reason-
Pornographic
Defamatory
Illegal/Unlawful
Spam
Other Terms Of Service Violation
File a copyright complaint
Description
Helpful Links
О нас
Политика конфиденциальности
Правила и условия
Copyright
Контакты
Helpful Social
Get monthly updates
Submit
Copyright © 2024 SCHOLAR.TIPS - All rights reserved.
Answers & Comments
Verified answer
2/3 * (4,2 - 9,6х) = 2,8 * (2/7 - 1/2 *х )2/3 * 4,2 - 2/3 * 9,6х = 2,8 * 2/7 - 2,8 * 1/2 * х
2/3 * 21/5 - 2/3 * 48/5 *х = 14/5 * 2/7 - 14/5 * 1/2 *х
14/5 - 32/5 * х = 4/5 - 7/5 *х
2,8 - 6,4х = 0,8 - 1,4х
-6,4х +1,4х = 0,8 - 2,8
-5х = -2
х=(-2)/(-5)
х=0,4
проверим:
2/3 * ( 4,2 - 9,6 * 0,4) = 2,8 *( 2/7 - 1/2 * 0,4)
2/3 * ( 4,20 - 3,84) = 2,8 * (2/7 - 0,2)
2/3 * 0,36 = 2,8 * ( 20/70 - 14/70)
2/3 * 9/25 = 14/5 * 6/70
(2*3)/(1*25) = (14*3)/(5*35)
6/25 = (2*3)/(5*5)
6/25=6/25
0,24=0,24