Question

1.The first term of an arithmetic sequence is equal to 200 and the common difference
is equal to -10. Find the value of the 20 th term.

Answer 1

The 20th term is the 19th term after the first term ( 19 + 1 = 20)

-10 x 19 = -190

200 + -190 = 200-190 = 10

Answer: 10