Предмет: Математика, автор: NOOBASHAandagjwnw

ПОМОГИТЕ СРОЧНО
ПОЖАЛУЙСТА НОМЕР 7 и 8
ДАМ 40 БАЛЛОВ

Приложения:

Ответы

Автор ответа: Аноним

Ответ:

Пошаговое объяснение:

ЗАДАЧА 7

масса плода - 25 кг

масс семени - 4 / 5 от массы плода

чтобы найти дробь от числа, число надо разделить на знаменатель (5) и умножить на числитель (4). делаем.

25 : 5 * 4 = 20 (кг)

Ответ: масса семени 20 кг.

в задании 8 лучше выполнять по действиям. сначала делаем умножение или деление в том порядке, как записано, а потом возвращаемся к началу примера и делаем сложение и вычитание в том порядке, как написано. вопросов не должно возникать

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