Ask
your own question, for FREE!
Mathematics
19 Online
OpenStudy (anonymous):
What is the sum of the first 35 numbers in the arithmetic series 124 + 133 + 142 + 151 + ⋯? A. 5,690 B. 9,566 C. 9,659 D. 9,695 E. 10,010
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
a=124 , d=9 (the difference) , n = 35 plug them in the formula: S=n/2(2a + (n-1)d)
OpenStudy (anonymous):
It is D
OpenStudy (anonymous):
Check it for yourself
OpenStudy (anonymous):
a1 = 124 d = 9 n = 35 an = a1 + (n - 1) * d a35 = 124 + (35 - 1) * 9 a35 = 124 + 34 * 9 a35 = 124 + 306 a35 = 430 (this is just the 35 term) sn = n(a1 + an) / 2 s35 = 35(124 + 430) / 2 s35 = 35 (554)/2 s35 = 19390/2 s35 = 9695 I agree....answer is D
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
lovelove1700:
u00bfA quu00e9 hora es tu clase?Fill in the blanks Activity unlimited attempts left Completa.
glomore600:
find someone says that that one person your talking to doesn't really like you should I take their advice and leave or should I ask the person i'm talking t
Addif9911:
Him I dimmed the light that once felt mine, a glow I never meant to lose. I over-read the shadows, let voices crowd the room where only two hearts shouldu20
EdwinJsHispanic:
Poem to my mom who proved my point "You proved my point, I am a failure. but I kinda wish, you were my savior.
Wolfwoods:
The Modern Princess "you spoke so softly to me, held me close when no one else did, loved me in a way no one else dared to.
Wolfwoods:
The Pain Of Waiting "The short story would be that we fell in love, you left and I continued to wait for you.
notmeta:
balance the following equation - alumoinum chlorate --> alumninum chloride + oxyg
lovelove1700:
u00bfA quu00e9 hora es tu clase?Fill in the blanks Activity unlimited attempts left Completa.
1 hour ago
0 Replies
0 Medals
glomore600:
find someone says that that one person your talking to doesn't really like you should I take their advice and leave or should I ask the person i'm talking t
5 hours ago
5 Replies
0 Medals
Addif9911:
Him I dimmed the light that once felt mine, a glow I never meant to lose. I over-read the shadows, let voices crowd the room where only two hearts shouldu20
1 day ago
4 Replies
0 Medals
EdwinJsHispanic:
Poem to my mom who proved my point "You proved my point, I am a failure. but I kinda wish, you were my savior.
1 day ago
6 Replies
2 Medals
Wolfwoods:
The Modern Princess "you spoke so softly to me, held me close when no one else did, loved me in a way no one else dared to.
2 days ago
11 Replies
3 Medals
Wolfwoods:
The Pain Of Waiting "The short story would be that we fell in love, you left and I continued to wait for you.
3 days ago
7 Replies
2 Medals
notmeta:
balance the following equation - alumoinum chlorate --> alumninum chloride + oxyg
2 days ago
4 Replies
1 Medal