Question

Срочно!!! 1)87:3=х:30 2)х:19=55:11 3)208:х=28:7​

Answer 1

Ответ:

1) 870

2) 95

3) 52

Пошаговое объяснение:

1) 87/3=х/30 => х = (30*87)/3 = 870

2) х/19=55/11 => х = (19*55)/11 = 95

3) 208/х=28/7 => х = (208*7)/28 = 52

Answer 2

$87 \div 3 = x \div 30 \\ 29 = x \div 30 \\ x = 29 \times 30 \\ x = 870 \\ \\ x \div 19 = 55 \div 11 \\ x \div 19 = 5 \\ x = 5 \times 19 \\ x = 95 \\ \\ 208 \div x = 28 \div 7 \\ 208 \div x = 4 \\ x = 208 \div 4 \\ x = 52$