Question

Ap question- a= 18 d=-3 an=- 47. find n​

Answer 1

Answer:n=23

Step-by-step explanation: use the formula tn=a+(n-1)d

Then enter the available values

-47=18+(n-1)-3

Then multiply -3 with (n-1)

-47=18-3n+3

Group like terms and solve

3n=18+47+3

3n=68

3n/3=68/3

n=22.666..

Round of to the nearest whole number

Final answer

n= 23