Answer:
X=25
Step-by-step explanation:
The outside angle is equal to the two opposite angles, so you can make the equation: (2X+4)+(3X-13)=116 and solve to get X=25
Answer:5
Step-by-step explanation:
Answer:
4 tickets were sold
Step-by-step explanation:if you have 100 of anything. 5 sets of 20=100
Assume the smaller one is x, then the other ones will be x+2 and x+4
x(x+2) + 2 = 5(x+4)
x^2 + 2x - 5x - 18 = 0
-> x^2 - 3x - 18 = 0
-> (x-6)(x+3) = 0
-> x = 6 or -3, since x must be positive, then x = 6
So the numbers are: 6, 8, 10