Answer:
1 = m - 2/9 + 7/10
Step-by-step explanation:
We have to, a wall represents unity, therefore to climb a wall, it would then be 1/1 of that wall.
They tell us that the majority has risen, they do not tell us how much, therefore, we will assume that the majority with a value m.
So, when it fell, it lost 2/9 of the wall but then resumed 7/10, that is:
- (2/9) + (7/10) = -20 + 63/90 = 43/90
That is, it had an advance of 43/90 of the wall, we know that the wall is 1/1, therefore:
p = m + 43/90
m = 1/1 - 43/90 = 90-43 / 90
m = 47/90
It means that most of the wall is 47/90
The function would be
1 = m - 2/9 + 7/10