My Math Forum Word problem with arithmetic sequence

 Elementary Math Fractions, Percentages, Word Problems, Equations, Inequations, Factorization, Expansion

 September 30th, 2017, 03:06 PM #1 Newbie   Joined: Sep 2017 From: Czech Republic Posts: 1 Thanks: 0 Word problem with arithmetic sequence Hello, I'm just trying to solve one problem probably arithmetic succession. Somehow I do not know where to start, counting examples from the Hudet collection and Peták does not do my problem, the arithmetical sequence is a fairly light topic, but here I do not know where and how. Do you advise? Marta decided one day to write the number of scorched ideas she had that day from tomorrow. In order to avoid it, for the sake of clarity, the number obtained on the i-th day is denoted as $_ {i}$. Patiently, every day counts the product of all the differences and $_ {i}$ - and $_ {j}$ for i
 September 30th, 2017, 04:16 PM #2 Math Team   Joined: Oct 2011 From: Ottawa Ontario, Canada Posts: 13,461 Thanks: 949 Please get someone to write your problem in proper English. This is an arithmetic sequence: 7,10,13,16 = 46 a = 1st term = 7 n = number of terms = 4 d = difference between successive terms = 3 S = sum of the n terms = 46 Do you fully understand above?

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