Final answer:
The nth term of the arithmetic sequence 60, 55, 50, 45 is calculated using the formula Tn = a + (n - 1)d. In this case, the first term a is 60 and the common difference d is -5. Therefore, the nth term is 65 - 5n.
Step-by-step explanation:
To find the nth term of an arithmetic sequence, we use the formula:
Tn = a + (n - 1)d
where Tn is the nth term, a is the first term, n is the term number and d is the common difference.
In the given sequence 60, 55, 50, 45, the first term a is 60 and the common difference d is -5 (since each term is 5 less than the previous term).
Thus, the formula for the nth term is:
Tn = 60 + (n - 1)(-5)
Tn = 60 - 5n + 5
Tn = 65 - 5n
Therefore, the nth term of the sequence is 65 - 5n.