Question

A charity bingo game costs $2 per round and has a $13 entry fee for an adult. It costs $3 per round and a $10 entry fee for a child. For how many rounds of bingo are the costs the same for an adult and a child?

a 2
b 3
c 4
d 5

Answer 1

amazing

Answer 2

question has been edited to supply missing information

Answer 3

let x = the number of bingo games played by either a child or an adult

for the adults, the total fee paid is the entry fee + (price per game)(number of games)
you can set up a similar equation for the children.

set the equations equal to each other and solve for x