melissahoward1964 melissahoward1964

30-03-2020
Mathematics

contestada

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

Respuesta :

devishri1977 devishri1977

30-03-2020

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

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