Question

А) В бидоне 12 л молока, 2/3 этого количества отлили в другой бидон.Сколько литров молока осталось в первом бидоне? Б) Найдите длину отрезка,если известно,что 3/7 ее состовляют 21 см.

Answer 1

А)12:3=4литра в одной части

2*4=8литров в двух частях из трех
В первом бидоне осталась одна часть из трех, это 4 литра
Б)21:3=7см одна часть
7*7= 49см полная длина данного отрезка

Answer 2

А) 12:3=4 Б) 21:3=7 7*7=49

Answer 3

Answer:

A) To find out how much milk is left in the first container, we need to subtract 2/3 of the total amount of milk from the original 12 liters.

The calculation can be done as follows: 12 liters * (1 - 2/3) = 12 liters * 1/3 = 4 liters

Therefore, there are 4 liters of milk left in the first container.

B) To find the length of the segment, we can set up a proportion using the given information.

Let's assume the length of the segment is represented by "x". We know that 3/7 of the segment is equal to 21 cm.

The proportion can be set up as follows: (3/7) * x = 21 cm

To solve for "x", we can multiply both sides of the equation by 7/3: x = (21 cm) * (7/3) = 49 cm

Therefore, the length of the segment is 49 cm.

Please let me know if there's anything else I can help you with!