Question

Find the 10th term. 10, 15,20,...

Answer 1

Explanation:

formula

an = a1 + (n - 1) d

10 = a1

15 = a2

20 = a3

n = unknown number

d = difference between each sequence

a10 = 10 + (10 - 1) 5

a10 = 10 + (9)5

a10 = 10 + 45

a10 = 55

Answer 2

1:10
2: 15
3:20
4:25
5:30
6:35
7:40
8:45
9:50
10:55