melissa65 melissa65

01-12-2016
Mathematics

contestada

Find the Nth term of the following sequence...

7, 27, 47, 67, .....

Respuesta :

wizard123 wizard123

01-12-2016

Arithmetic series which we are adding 20 to get next term.

Explicit formula for arithmetic series is:
[tex]A_n = A_1 + d(n-1)[/tex]
d =20
a1 = 7

Answer Link

01-12-2016

Use the formula an=a1+d(n-1).
an=20n-13

Answer Link

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