In the morning the air temperature was + 8C By noon it changed by + 4C by the evening – by -3C by the night – by -2C.
| January 2, 2021 | education
In the morning the air temperature was + 8C By noon it changed by + 4C by the evening – by -3C by the night – by -2C. What was the air temperature at night.
In the morning the temperature was + 8C, and by noon it changed by + 4C, that is, the air temperature became:
8 + 4 = 12C – temperature by noon.
By the evening, the temperature changed by -3C, which means that the air temperature by the evening became:
12 – 3 = 9C – temperature in the evening.
And by nightfall, the temperature dropped by 2C, then:
9 – 2 = 7C – temperature at night.
Answer: 7C was the air temperature at night.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
