We can see that this is an arithmetic sequence where the common difference is -4. Using the formula for finding the nth term of an arithmetic sequence, we can find the 12th term as follows:
a12 = a1 + (n-1)d
where a1 is the first term, n is the term we are finding, and d is the common difference.
So, substituting the values we know:
a12 = 15 + (12-1)(-4)
a12 = 15 + 44
a12 = 59
Therefore, the 12th term of the sequence 15, 11, 7, … is 59.
What is the 12th term of the sequence 15, 11, 7, …?
1 answer