The correct answer to this problem is
C=3
Y=3
You are right. Transitivity means, that:
if a = b and b = c, then a = c
(here a = x, b=5 and c = y).
I don’t get what the question is asking.
Answer:
210
Step-by-step explanation:
Rewriting input as fractions if necessary:
4/7, 5/14, 4/15
For the denominators (7, 14, 15) the least common multiple (LCM) is 210.
LCM(7, 14, 15)
Therefore, the least common denominator (LCD) is 210.
Calculations to rewrite the original inputs as equivalent fractions with the LCD:
4/7 = 4/7 × 30/30 = 120/210
5/14 = 5/14 × 15/15 = 75/210
4/15 = 4/15 × 14/14 = 56/210
Here 'a' corresponds to 0.
Now there are two possibilities for 'r' & 't'
Case 1.
They are on the same side to the right of 'a'
In that case 'r' corresponds to 5 & 't' corresponds to 7.
The midpoint of 'r' and 't' shall be 
Case 2.
Both are on the left of 'a'.
In that case 'r' corresponds to -5 & 't' corresponds to -7
The midpoint shall be 
Case 3.
'r' in on the right of 'a' and 't' is on the left of 'a'
So 'r' corresponds to 5 and 't' corresponds to -7
The midpoint shall be 
Case 4.
'r' is on the left of 'a' & 't' is on the right of 'a'.
'r' corresponds to -5 & 't' corresponds to 7
The midpoint shall be 
The possible coordinates of the midpoints of rt are 6, -6, 1, -1.