contestada

An adult ticket to a museum costs $3 more than a children's ticket when 200 adult tickets and 100 children's tickets are sold the total revenue is $2100.what is the cost of a children's ticket?

Respuesta :

y: cost of a children's ticket
x: cost of a adult's ticket


200x+100y=2100
x-y=3
and then just solve it, i think 

RELAXING NOICE
Relax