Предмет: Математика, автор: artemshmigel

помогите... Решите три задачи.

Приложения:

artemshmigel: давай, хоть пару 5 и 6 хоть((((

artemshmigel: кратко можно.

Ответы

Автор ответа: temerep

1

5. 1/6 * 1/2x = 30

x = 150

6. $24 - 2\frac{3}{7}x = x$

x = 7 (часов)

7. 0,3x + 3,5 = 1/2x

x = 17,5 (км)

artemshmigel: Спасибо, бро, очень выручил!!!

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