We can solve the equation system using elimination and subtitution method.
First, eliminate x to find the value of y
x - 2y = 9
x - y = 11
---------------- - (substract)
-y = -2
y = 2
The value of y is 2
Second, subtitute 2 as y in one of the equation
x - y = 11
x - 2 = 11
x = 11 + 2
x = 13
The solution
x, y = 13, 2
10:10 pm because the movie ended at 9:20 and 50 minutes later would be 10:10 :)
Answer:
18m I guess
Step-by-step explanation:
It mean 40 because it is in the tens place
~Jz