Question

integers between 10 and 500 divisible by 7

Answer 1

First integer between 10 and 500 divisible by 7 is 14.
a=14
d=7
a(n)=497
a(n)=a+(n-1)d
497=14+(n-1)7
497=14+7n-7
497=7+7n
7n=490
n=490/7
n=70
Therefore there are 70 terms.


HOPE IT HELPS.