Question

Can anyone please help

Answer 1

Adult tickets = $73.5

Child tickets = $20.5

Explanation:

`{ \rm{3x + 5y = 50 - - - \{eqn \: 1 \}}} \\ { \rm{x + 5y = 31 - - - \{eqn \: 2 \}}} \\`

• Subtract eqn 2 from eqn 1:

`{ \rm{2x = 21}} \\ { \rm{x = 10.5}}`

`{ \rm{10.5 + 5y = 31}} \\ { \rm{5y = 20.5}} \\ { \rm{y = 4.1}}`