Current location - Training Enrollment Network - Mathematics courses - Huoshan mathematics English
Huoshan mathematics English
You can work it out by listing an equation, which is about the difficulty of the sixth grade.

Let the year when the ancient city was buried be d.

The year of its heyday is Q.

The year when the excavation began was n years.

It can be seen from the description that N- 1669=D, N+2 12-Q=2039, and q =-d.

After several steps of equivalent substitution, we can get: n+212+n-1669 = 2039.

In this way, n can be calculated, that is, the excavation began in A.D. 1748, reached its peak in 79 BC and ended in A.D. 1960.

PS: Actually, there is no need to calculate. Go to Baidu Encyclopedia and look up "Pompeii Ancient City". The year and everything are clearly written.