Предмет: Математика, автор: Irina2333

Помогите решить задачу, с помощью уравнения:
В трех палатках у продавщиц было поровну мандаринов. Когда каждая продала по 600 мандаринов, то у всех вместе осталось столько, сколько было первоначально у каждой. Сколько же это?

Ответы

Автор ответа: Ellenochka
0
пусть было у каждой по х мандарин. составим уравнение:
3х - 600 = х
2х = 600
х=300 (мандарин) было первоначально у каждой
Похожие вопросы
Предмет: Английский язык, автор: Аноним
Предмет: Английский язык, автор: dan44ik00
B There are mistakes in seven out of these ten sentences. Rewrite them correctly.
0 My boyfriend, which father is a scientist wants to study mathematics.
My boyfriend, whose father is a scientist,________________
wants to study mathematics.___________________________
00 He made a few suggestions about how we could spend the money.
correct____________________________________________
/ 10
__________________________________________________
1 Roosevelt that became famous for his military achievements was the 26th president of the US.
__________________________________________________
__________________________________________________
2 I’d like John to come to our party. He tells so funny jokes.
__________________________________________________
__________________________________________________
3 Our biology teacher made a great influence on Tom’s future career.
__________________________________________________
__________________________________________________
4 Many pupils use their mobile phones at school, what is considered unacceptable.
__________________________________________________
__________________________________________________
5 Richard used to be crazy about British rock groups such as The Rolling Stones.
__________________________________________________
__________________________________________________
PHOTOCOPIABLE © 2006 Pearson Longman ELT 2

6 I read an article who discussed the issue of euthanasia in some depth. __________________________________________________
__________________________________________________
7 He was such unpredictable that Ann decided to break off her engagement.
__________________________________________________
__________________________________________________
8 I got fed up with being criticised by people from other advertising agencies.
__________________________________________________
__________________________________________________
9 There are a lot of teenagers who have a good command of a foreign language.
__________________________________________________
__________________________________________________
10 Fresh evidence suggests that the woman may be forced to commit suicide.
__________________________________________________
__________________________________________________
PHOTOCOPIABLE © 2006 Pearson Longman ELT 3

C Complete the idioms with one appropriate word. Then explain in English the meaning of each idiom.
0 She was as sick as a ________dog_____________________ . She was very ill.____________________________________
1 It’s a pity he let the cat out of the ______________________ . _________________________________________________
2 Margaret has always been the black ____________________ . of the family. ______________________________________
3 I’m not going to join the rat ___________________________ . _________________________________________________
4 She has a bee in her _____________________ about dancing. _________________________________________________
/9
5 My Scottish niece, who only speaks English, feels like a fish out of __________ when she goes abroad.
__________________________________________________
Предмет: Алгебра, автор: иван1231996