Question

the sum of first 15 terms of an arithemetic sequence is 300 if the first term is 6 find the common difference
​

Answer 1

Answer:

d=2

Step-by-step explanation:

15/2[12+14d]=300

12+14d=40

14d=28

hope it helps

Answer 2

Answer:

2

Step-by-step explanation:

by using the formula we can find the answer

pls mark brainliest..

pls follow