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30-10-2019
Mathematics

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An arithmetic sequence has a 10th term of 15 and 14th term of 35. What is the common difference?

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devishri1977 devishri1977

30-10-2019

Answer:

common diferrence = 5

Step-by-step explanation:

nth term = a + (n - 1)d

10th term ; a + 9d = 15 ----------(i)

14th term; a + 13d = 35 ---------(ii)

subtract (ii) from (i) -4d = -20

d = -20/-4

d = 5

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