Respuesta :
Answer:
88 adult tickets were sold
Step-by-step explanation:
3s + 7a = 1102
(s + a = 250)-3
3s + 7a = 1102
+ -3s - 3a = -750 Add these equations together
4a = 352 Divide both sides by 4
a = 88
Now plug this into the second equation
s + a = 250
s + 88 = 250
- 88 - 88 Subtract 88 from both sides
s = 162
If this answer is correct, please make me Brainliest!
You're supposed to make two equations then subtract them but it comes out as a decimal
The second equation is made by the student ticket cost/3$ times the amount of tickets sold/250.
x+y=250--> 3x+3y=750
7x+3y=1102
-3x-3y=750
5x =352
then 352/5=70.4
Idk if i did something wrong but this is what i got.