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16-07-2021
Mathematics

contestada

If the sum of seven odd consecutive numbers is 231, find the middle number.

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16-07-2021

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dulcydzantaladlink dulcydzantaladlink

16-07-2021

Answer:

33

Step-by-step explanation:

(1+x) + (3+x) + (5+x) + (7+x) + (9+x) + (11+x) + (13+x) = 231

7x + 49 = 231

7x = 231 - 49

7x = 182

x = 182/7

x = 26

To find the middle number;

7 + x

= 7+26

= 33

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