Question

Find k id f the given value of x is the k the term of the given AP 1, 21/11 , 31/ 11, 41/11...........x=171/11

Answer 1

Answer:

x=15

Step-by-step explanation:

d=a¹- a²

d= 10/11

an=a+(n-1)d

171/11= 1 + (n -1)10/11

171/11 -1 = 10n/11 - 10/11

171/11 -11/11 =(10n-10)/11

160/11 *11 = 10n-10

160 -10 = 10n

150= 10n

n = 150/10

n= 15

~x= 15