Question

Look at the arithmetic pattern shown here.

Answer 1

Answer:

$a_{n}$ = 10n

Step-by-step explanation:

The nth term of an arithmetic sequence is

$a_{n}$ = a₁ + (n - 1)d

where a₁ is the first term and d the common difference

Here a₁ = 10 and d = a₂ - a₁ = 20 - 10 = 10 , then

$a_{n}$ = 10 + 10(n - 1) = 10 + 10n - 10 = 10n