Answer:
oookkkkkkkk
Step-by-step explanation:
Answer:
68
Step-by-step explanation:
Let x=adult tickets and y=child tickets
1) 15x+11y=1889
2) x+y=147
multiply equation 1 by -1/11 on both sides to get:
-(15/11)x-y=-171.73
add new equation with equation 2 to get
-4/11x=-24.73
Isolate x to get:
x=67.99999
Round up to get 68 adult tickets
Answer:
-1
Step-by-step explanation:
8+9=17
9+8=17
17-8=9
17-9=8
But, 8-9 is -1
C because I did the mean value theorem and got that as the solution.
