Предмет: Математика, автор: Kobzhanova

2 «Кулинария»
1. Для приготовления варенья из 2 кг крыжовника необходимо 3 кг сахара. Сколько кг сахара необходимо для приготовления варенья из 4,4 кг крыжовника.
2. Мама с дочкой тратят на засолку капусты 4,5 часа, за какое время они засолят это же количество капусты, если им будет помогать папа?

Приложения:

Ответы

Автор ответа: lvenokstepa
2

Ответ:

1. 6,6 кг

2. 3 часа

Пошаговое объяснение:

1. составим пропорцию

2/3=4,4/х

2х=13,2

х=6,6 кг

2. составим уравнение, где х- нужное нам число

4,5*2=3х

3х=9

х=3 часа

Kobzhanova: Спасибо вам!
lvenokstepa: не за что
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