Jyotirao Phule wrote a book in 1873. He named - вопрос №118426001873 от theartik1 25.01.2021 21:21

Question

Математика: Jyotirao Phule wrote a book in 1873. He named the book Gulamgiri meaning slavery. Some ten years before this, the American Civil War had been fought, leading to the end of slavery in America. Phule dedicated his book to all those Americans who had fought to free slaves.Feb 12, 2019​

theartik1 · Answer

Пропорция: 3 части ягод - 2 части сахара
1 1/5 кг ягод - х кг сахара
х = 1 1/5 * 2 : 3 = 6/5 * 2 : 3 = 12/5 : 3 = 12/5 * 1/3 = 4/5 кг сахара
ответ: на 1 1/5 кг ягод надо брать 4/5 кг сахара.

Пропорция: 3 части ягод - 2 части сахара
х кг ягод - 1 1/5 кг сахара
х = 1 1/5 * 3 : 2 = 6/5 * 3 : 2 = 18/5 : 2 = 18/5 * 1/2 = 18/10 = 9/5 = 1 4/5 кг ягод
ответ: на 1 1/5 кг сахара надо брать 1 4/5 кг ягод.

По действиям:
3 : 2 = 1 1/2 (раз) - ягод надо брать в полтора раза больше, чем сахара
а) 1 1/5 : 1 1/2 = 6/5 : 3/2 = 6/5 * 2/3 = 12/15 = 4/5 кг сахара (в полтора раза меньше);
б) 1 1/5 * 1 1/2 = 6/5 * 3/2 = 18/10 = 9/5 = 1 4/5 кг ягод (в полтора раза больше)

Jyotirao Phule wrote a book in 1873. He named the book Gulamgiri meaning slavery. Some ten years before this, the American Civil War had been fought, leading to the end of slavery in America. Phule dedicated his book to all those Americans who had fought to free slaves.Feb 12, 2019​

Jyotirao Phule wrote a book in 1873. He named the book Gulamgiri meaning slavery. Some ten years before this, the American Civil War had been fought, leading to the end of slavery in America. Phule dedicated his book to all those Americans who had fought to free slaves.Feb 12, 2019