Answer: 1
Step-by-step explanation:
Only one element is in the event space for rolling the sum of 12 with two dice
(6,6)
If you must roll the sum of 12 with two dice, you must have rolled 6 in the two dice
Answer: The number of child tickets is 85 and the number of adult tickets is 95.
Step-by-step explanation:
Let C = Number of child tickets
A = Number of adult tickets.
As per given, we have
C+A=180 (i)
7C+13A=1830 (ii)
Multiply 7 to both sides of equation (ii), we get
7C+7A=1260 (iii)
Eliminate (iii) from (ii) , we get

Put value of y in (i), we get
C= 85
Hence, the number of child tickets is 85 and the number of adult tickets is 95.
1.785714285714286 should be your answer