Question 1052423
If you just buy tickets, then you have to pay $5 per ticket.
 If he signs up as a group then he must pay $120 as a deposit, and then each ticket cost $1. 
How many tickets must he buy until both options cost the same amount?
:
let t = no. of tickets
Plan 1 = Plan 2
5t = 1t + 120
5t - t = 120
4t = 120
t = 120/3
t = 30 tickets will cost the same for either plan
Check
30(5) = $150
30(1) + 120 = $150
:
 What is the amount? $150