if a =13,t15=55,find d
Answers
Answered by
6
tn=a+(n-1)d
for n=15
a=13
t15=13+(15-1)d
55=13+14d
55-13=14d
42=14d
42÷14=d
3=d
for n=15
a=13
t15=13+(15-1)d
55=13+14d
55-13=14d
42=14d
42÷14=d
3=d
grishmamody10:
plz mark as brainleast if u liked the answer
Answered by
3
tn=a+(n-1)d
t15=13+(15-1)d. (n=15)
55=13+14d
14d=55-13
14d=42
d=42/14
d=3
Similar questions
History,
8 months ago
Math,
8 months ago
Math,
8 months ago
Chemistry,
1 year ago
Social Sciences,
1 year ago