Register
Identify the 35th term of an arithmetic sequence where a1 = -7 and a18 = 95
210k views
4 votes
Identify the 35th term of an arithmetic sequence where a1 = -7 and a18 = 95

User Sanira Liyanage
by
8.3k points

1 Answer

5 votes

a_1=-7;\ a_(18)=95\\\\a_(18)-a_1=17d\\\\17d=95-(-7)\\17d=95+7\\17d=102\ \ \ |divide\ both\ sides\ by\ 17\\d=6\\\\a_(35)=a_1+34d\\\\a_(35)=-7+34\cdot6=-7+204=197\\\\Answer:\boxed{a_(35)=197}
User Gremur
by
8.0k points
Ask a Question
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.1m answers

Other Questions

How do you estimate of 4 5/8 X 1/3
A bathtub is being filled with water. After 3 minutes 4/5 of the tub is full. Assuming the rate is constant, how much longer will it take to fill the tub?
Write words to match the expression. 24- ( 6+3)
A dealer sells a certain type of chair and a table for $40. He also sells the same sort of table and a desk for $83 or a chair and a desk for $77. Find the price of a chair, table, and of a desk.
Mr. Jacob is 55 years old and tony is 7 years old. in how many years will mr. Jacobs be 4 times as old as Tony
Link Copied!