Предмет: Математика, автор: Аноним

У країні між будь-якими двома містами є авіасполучення. Скільки в країнi мiст, якщо відомо, що у льше 70, але менше 80? Помогите пожалуйста ТЕСТ

Ответы

Автор ответа: abaminkovasilij

1

Ответ:

Пошаговое объяснение:

70÷2÷5÷7

80÷2÷2÷2÷2÷5

Нсд=2×5=10

Отже, у краiнi 10 мiст.

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