Posted by **KIM** on Tuesday, June 8, 2010 at 11:52pm.

The first difference of a sequence is 6, 10,14,18. The sum of the first two terms of the original sequence is 24. Find the first three term of the original sequence. the first term of the original sequence is?

- Math? needs help -
**SraJMcGin**, Wednesday, June 9, 2010 at 2:24am
Select the name of the School Subject carefully or the right teacher will not even see your post. the Subject is NOT "college."

Sra

- college -
**Reiny**, Wednesday, June 9, 2010 at 6:37am
let the first three terms be a, b, and c

we know

a+b = 24 (#1)

b-a = 6 (#2)

c-b =10 (#3)

add 1 and 2

2b = 30

b=15

in 1 ---> a+15 = 24 ,

a = 9

in 3

c - 15 = 10

c = 25

a=9

b=15

c=25

## Answer This Question

## Related Questions

- Math for Educators - The first difference of a sequence is 8, 12, 16, 20,... The...
- math - in an arithmetic sequence the common difference is equal to 2.the first ...
- help - the first term of an original sequence is 3,6,9,12,15,... Find the first ...
- Maths - 1..The first 2 terms of a geometric progression are the same as the ...
- Precalculus - The 8th term in an arithmetic sequence is 5, and the sum of the ...
- Algebra - I am so lost on these problems. Write a geometric sequence that starts...
- math - The first and second terms of an exponential sequence (G.P) are ...
- math30 - Sequences 1)A sequence has a first term of 24 and every other term is ...
- pre-calculus urgent - The first term of an arithmetic sequence is 6, and the ...
- komenco - the first, second, and fifth term of an AP are three consecutive terms...

More Related Questions