Answer:
The cost of one ticket will be £9.40
Step-by-step explanation:
Since they are asking for how much each ticket costs, let's, for now, think that the cost of one ticket is x
Since 4 friends are going to the cinema, and it says, "buy 3 tickets and get a ticket free", they still need to pay for 3 tickets
So our equation to find how much each ticket would be
3 tickets = 3x
Notice it says They each pay £7.05
So the total amount they would pay would be
£7.05 x 4 = £28.20
Thus, the equation will now be
3x = 28.20
now divide 28.20/3
/ means I'm dividing
So, the cost of one ticket is £9.40
Hope this helps! :D