AP calculus
posted by Watermelon .
The consecutive terms of an arithmetic progression are 5x, 8, 2x. Find the common difference of the progression.

AP calculus 
MathMate
The common difference of an A.P. is constant, therefore, we can take the difference of consecutive terms and equate the values to determine x:
2x8 = 8  (5x) =>
2x  x = 85+8 =>
x = 11
or
common difference
=2x8
= 14
Respond to this Question
Similar Questions

arithmetic
Two arithmetic progression have thd same first and last terms.the first arithmetic progression has 21 terms with a common difference of 9.How many terms has the other arithmetic progression if its common difference is 4? 
AP calculus
Given an arithmetic progression 7,3,1,..., state three consecutive terms in this progression which sum up to 75. 
AP Calculus
The 9th term of an arithmetic progression is 4+5p and the sum of the four terms of the progression is 7p10, where p is a constant. Given that common difference of the progression is 5, find the value of p. 
Math
5 distinct positive reals form an arithmetic progression. The 1st, 2nd and 5th term form a geometric progression. If the product of these 5 numbers is 124 4/9, what is the product of the 3 terms of the geometric progression? 
Math (Geometric Progression)
5 distinct positive reals form an arithmetic progression. The 1st, 2nd and 5th term form a geometric progression. If the product of these 5 numbers is 124 4/9, what is the product of the 3 terms of the geometric progression? 
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 … 
algebra
if 1, 2, 7 and 20, respectively, are added to the first terms of an arithmetic progression, a geometric progression of four terms is obtained. find the first term and common difference of the arithmetic progression the answers are … 
Maths
The numbers p,10 and q are 3 consecutive terms of an arithmetic progression .the numbers p,6 and q are 3 consecutive terms of a geometric progression .by first forming two equations in p and q show that p^220p+36=0 Hence find the … 
math
An arithmetic progression as the same first and second terms as the geometric progression. Find the sum of the first 20 terms of the arithmetic progression. How do I do this? 
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 …