A passenger train has tickets available for 12 window seats and 8 aisle seats. The next
person to buy a ticket will be randomly assigned
to one of those seats. What is the probability that
the next person will be assigned to an aisle seat?
30.
A.
B.
C.
D.
PLZ HELP MEE

5y

step-by-step explanation:

answer: no

step-by-step explanation:

you are only given the cost not the amount of pounds.

, 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