Four friends attend a school play $6 per ticket. each also buys a healthy snack bag sold by the theatre club. if the friends spent a total of $34, how much did each healthy snack bag, b, cost. write and solve an equation

4 (6) + 4x = 34

This is because there were 4 friends, as each of them attended the theatre club for $6, we would do 6 X 4 = 24.

24 + 4x = 34

Subtract:

4x = 10

x = 2.5

Each bag costed $2.5

, 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

answer by yourhope:

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