Question

1)2:7=3,5 2)7+2=9 3)14:9=1,6 4)2х1=2-1-е число 5)7х2=14-2-е число 1+14=15 7:2=3,5 проверте правильно я ли сделал? если нет исправте пж.

Answer 1

1)7:2=3,5 должно быть
2)✓
3)✓
4)✓
5)✓
6)✓
7)✓
у тебя все правильно выполнены, кроме 1, ты наверняка перепутал)))
удачиии;)!!!

Answer 2

Let's go through each statement and check if they are correct or not:

1. 2:7 = 3.5 - This statement is incorrect. The correct result of 2 divided by 7 is approximately 0.2857 (rounded to four decimal places).

2. 7+2 = 9 - This statement is correct. The sum of 7 and 2 is indeed 9.

3. 14:9 = 1.6 - This statement is incorrect. The correct result of 14 divided by 9 is approximately 1.5556 (rounded to four decimal places).

4. 2x1 = 2 - 1-е число - This statement is unclear. It seems like the answer might be "1", but it's not very well-explained. If you meant 2 times 1 equals 2, then it is correct.

5. 7x2 = 14 - 2-е число - This statement is unclear as well. It appears to be suggesting that "14 - 2-е число" is the answer. If you meant to say that 7 times 2 equals 14, then it is correct.

6. 1+14 = 15 - This statement is correct. The sum of 1 and 14 is indeed 15.

7. 7:2 = 3,5 - This statement is incorrect. The correct result of 7 divided by 2 is 3.5, not 3,5. In some regions, a comma is used as a decimal separator, while in others, a period is used. The correct way to represent the result is 3.5.

So, out of the seven statements, four are correct, and three are incorrect. The incorrect statements are 1, 3, and 7.

Corrected statements:

1. 2:7 = 0.2857 (approximately)
2. 14:9 = 1.5556 (approximately)
3. 7:2 = 3.5

If you have any further questions or need more explanations, feel free to ask!