Question

What is the Nth term of these numbers 80, 120, 160

Answer 1

Answer:

Step-by-step explanation:

80,120,160.....

This is an arithmetic sequence

common difference (d) = 2nd term - 1st term

                                      = 120 - 80 = 40

first term (a) = 80

nth term = a + (n-1)d

              = 80 + (n-1)*40

              = 80 + 40n -40

              = 40 + 40n