# arithmetic

posted by .

The first three terms in an arithmetic are given by x,4x+5 and 10x-5.find the value of x.

• arithmetic -

Do you mean an arithmetic SERIES?
(With the accent in the syllable MET?) In that case, "arithmetic" is an adjective with a specific meaning. There are many other kinds of series.

If so, the difference between consecutive terms must be constant.

That means that 3x + 5 = 6x - 10
3x = 15
x = 5

The first three terms would be
5, 25 and 45.

## Similar Questions

1. ### math

two terms of an arithmetic sequence are 15 and 45. Create three different arithmetic sequences given these terms
2. ### arithmetic

the first and second terms of an arithmetic progression are 161 and 154 respectively.the sumthe first m terms is zero.find the value of m
3. ### arithmetic

an arithmetic progression has 20 terms. the sum of all the even terms is 350. given that the first term is 5, find the common difference and the eleventh term.
4. ### Algebra

Determine whether each sequence is arithmetic or geometric. Find the next three terms. 14, 19, 24, 29, . . . A.geometric, 34, 39, 44 B.arithmetic, 32, 36, 41 C.arithmetic, 34, 39, 44 D.The sequence is neither geometric nor arithmetic. …
5. ### math

Determine whether each sequence is arithmetic or geometric. Find the next three terms. 1. 14, 19, 24, 29, . . . (1 point) geometric, 34, 39, 44 arithmetic, 32, 36, 41 arithmetic, 34, 39, 44 *** The sequence is neither geometric nor …
6. ### maths

X,4x+5 and 10x-5 are the first three terms of an arithmetic sequence. Determine the value of X.
7. ### math

The first, the third and the seventh terms of an increasing arithmetic progression are three consecutive terms of a geometric progression. In the first term of the arithmetic progression is 10 find the common difference of the arithmetic …
8. ### Math Help!!!

determine whether each sequence is arithmetic or geometric. find the next three terms. 1. 14,19,24,29.... geometric, 34,39,44 arithmetic,32,36,41 arithmetic 34,39,44**** the sequence is nether geometric nor arithmetic 2. -4,8,-16,32.... …
9. ### math

in an arithmetic sequence whose first term is 4, the 1st, 3rd and 7th terms form consecutive terms of geometric sequence, find the sum of the first three terms of the arithmetic sequence
10. ### math C2 sequences and series

The eight,fourth and second terms of an arithmetic progression form the first three terms of a geometric series. The arithmetic progression has first term A and common difference d, and the geometric progression has first term G and …

More Similar Questions