Let's say the cost of student tickets is x and the cost of adult tickets is y. Then:
(1) 12y + 6x = 138
(2) 5y + 11x = 100
If we rearrange equation (1) we get:
12y = 138 - 6x
Now divide each side by 12:
y = 11.5 - 0.5x
We can now substitute this into equation (2):
5(11.5 - 0.5x) + 11x = 100
57.5 - 2.5x + 11x = 100
8.5x = 42.5
x = 5, therefor the cost of a student ticket is $5.00
I think b= -4.75 in this equation
Answer:
31
Step-by-step explanation:
2 + 4 = 6
6 + 12 = 18
18 - 12 = 6
6 + 21 = 27
27 + 14 = 41
41 - 10 = 31
Answer: 20/27
Step-by-step explanation:
multiply numerators and denominators
1/3 x 20/9 = 20/27
you can not simplify further