DeAndre is ordering tickets to a concert. He buys 4tickets that all have the same price. There is a service charge of $2.50 per ticket. The total cost of his order is $86.50. What is the price of
each ticket?

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

final total: 63

step-by-step explanation:

60 times sales tax

60 times 0.05

3

60 + 3

63