avayassu avayassu
  • 14-01-2020
  • Mathematics
contestada

Help I don’t understand. Pic above

Help I dont understand Pic above class=

Respuesta :

JK94 JK94
  • 14-01-2020

Answer:

110

Step-by-step explanation:

x = adult's tickets

y = student's tickets

{x + y = 250

{5x + 7y = 1530

{- 5x - 5y = - 1250

{5x + 7y = 1530

--------------------------

2y = 280

y = 280/2

y = 140

x + y = 250

x + 140 = 250

x = 250 - 140

x = 110

I hope I've helped you.

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