Question

I need help what would be the 20th term in this sequence?NUMBER 7

Answer 1

It’s 140 just do 7x20

Answer 2

The 20th term is 140

Step-by-step explanation:

The sequence: 7, 14, 21, 28, 35, ...

The difference between the terms in the sequence:

14 - 7 = 21-14 = 7

As a result, we apply arithmetic progression

The formula:

`T_n=\text{ a + (n-1)d}`

where a = first term = 7

n = number of terms = 20

d = common difference

d = The difference between the terms = 7

We input the above into the formula to find the 20th term:

`\begin{gathered} T_(20)\text{ = 7 + (20-1)}*7 \\ T_(20)\text{ = 7 + 19(7) = 7 + 133} \\ T_(20)\text{ = 140} \\ Hence,t\text{he 20th term is 140} \end{gathered}`