Answer:
1
Step-by-step explanation:
In each set, there is a difference of 1 between the two x's.
Answer:
x = 48
Step-by-step explanation:
The sum of the angles of a triangle is 180
60+72+x = 180
132+x = 180
x = 180-132
x =48
5/3 = 315/x
5*x = 5x
3*315 = 945
5x = 945
5x/5 = 945/5
x= 945/5
x=189
Final answer: The riders are 189
No as the x value 3 is repeated.