Vision
From school to the world: All students
prepared for productive futures
Bell Ringer – Entry Ticket
(8 Feb 17)
Find five consecutive odd integers whose sum is 325.
Vision
From school to the world: All students
prepared for productive futures
Bell Ringer – Entry Ticket
(8 Feb 17)
Find five consecutive odd integers whose sum is 325.
Let n = first number, n + 2 = second number, n + 4 = third number, …
(n) + (n + 2) + (n + 4) + (n + 6) + (n + 8) = 325
(n + n + n + n + n) + (2 + 4 + 6 + 8) = 325
5n + 20 = 325; 5n = 305; n = 61 …
Therefore, the five consecutive numbers are:
61, 63, 65, 67, 69