Question

1. Прилетевшие вороны расселись по деревьям. На первое дерево села половина всех ворон. На второе дерево - половина оставшихся ворон, на третье дерево - половина нового остатка. А оставшиеся 3 вороны сели на четвертое дерево. Сколько ворон прилетели? 2. в метрах: 42 дм, 68 дм, 213 см, 872 см в килограммах: 3250 г, 4916 г, 7950 г.

Answer 1

1) 3Х2=6 ворон сели на 2 дерево.
2) 6х2 = 12 ворон сели на 1 дерево.
3) 12х2 = 24 вороны - всего



42 дм = 4,2м    68дм = 6,8м     213 см = 2,13 м      872см = 8,72 м

3250г = 3,25кг     4916г = 4,916кг     7950г = 7,95кг

Answer 2

Question 1: Прилетевшие вороны расселись по деревьям. На первое дерево села половина всех ворон. На второе дерево - половина оставшихся ворон, на третье дерево - половина нового остатка. А оставшиеся 3 вороны сели на четвертое дерево. Сколько ворон прилетели?

To determine the number of crows that arrived, we can work backwards from the information given. Let's break down the steps:

1. On the fourth tree, there were 3 crows. 2. On the third tree, there were twice as many crows as on the fourth tree, so there were 3 * 2 = 6 crows. 3. On the second tree, there were twice as many crows as on the third tree, so there were 6 * 2 = 12 crows. 4. On the first tree, there were twice as many crows as on the second tree, so there were 12 * 2 = 24 crows.

Therefore, the total number of crows that arrived is 24 + 12 + 6 + 3 = 45 crows.

Answer: 45 crows.

Question 2: В метрах: 42 дм, 68 дм, 213 см, 872 см. В килограммах: 3250 г, 4916 г, 7950 г.

To convert the given measurements to meters and kilograms, we need to apply the appropriate conversion factors:

1. 42 decimeters (dm) is equal to 4.2 meters (m) because 1 decimeter is equal to 0.1 meter. 2. 68 decimeters (dm) is equal to 6.8 meters (m). 3. 213 centimeters (cm) is equal to 2.13 meters (m) because 1 centimeter is equal to 0.01 meter. 4. 872 centimeters (cm) is equal to 8.72 meters (m).

Therefore, the measurements in meters are as follows: - 42 dm = 4.2 m - 68 dm = 6.8 m - 213 cm = 2.13 m - 872 cm = 8.72 m

To convert grams (g) to kilograms (kg), we divide the given values by 1000:

1. 3250 grams (g) is equal to 3.25 kilograms (kg) because 1 kilogram is equal to 1000 grams. 2. 4916 grams (g) is equal to 4.916 kilograms (kg). 3. 7950 grams (g) is equal to 7.95 kilograms (kg).

Therefore, the measurements in kilograms are as follows: - 3250 g = 3.25 kg - 4916 g = 4.916 kg - 7950 g = 7.95 kg

Answer: In meters: 42 dm = 4.2 m, 68 dm = 6.8 m, 213 cm = 2.13 m, 872 cm = 8.72 m. In kilograms: 3250 g = 3.25 kg, 4916 g = 4.916 kg, 7950 g = 7.95 kg.