Предмет: Математика, автор: Mineti

Помогите пожалуйста! На восточном базаре два верблюда и 8 баранов стоят 18 монет. Пять верблюдов и 2 барана стоят 27 монет. Сколько монет стоит 1 верблюд?
1) 6 монет 2) 3 монеты 3) 4 монеты 4) 8 монет 5) 5 монет 6) правильного ответа нет

Ответы

Автор ответа: samorost666
0
2х+8у=18 5х+2у=27 решаем систему х=9-4у из первого уравнения, подставляем во второе: 5*9-(5*4у)+2у=27 -18у=-18 у=1 - стоймость баранов чтобы найти стоимость верблюда подставьте найденное в х=9-4у х=5.
Автор ответа: Mineti
0
ответь пожалуйста только стоимость верблюда из задачи и ВСЁ
Автор ответа: Mineti
0
чё застыл то
Автор ответа: Mineti
0
отвечай, или гони обратно 10 б
Автор ответа: samorost666
0
ответ 5
Автор ответа: Mineti
0
спс)
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