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12 April, 09:14

The sum of two Consecutive integers is at least 36. What is the least possible pair of integers?

A 16 and 17

B 19 and 20

C 17 and 18

D 18 and 19

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Answers (2)
  1. 12 April, 11:00
    0
    16 + 17 = 33

    19 + 20 = 39

    17 + 18 = 35

    18 + 19 = 37

    A and C are less than 36 so they can't be the correct ones.

    37 is closer to 36 than 39 is.

    The lease possible set is D. 18 and 19
  2. 12 April, 12:07
    0
    D 18 and 19

    Step-by-step explanation:

    x = 1st integer

    x+1 = next consecutive integer

    x + (x+1) >=36

    combine like terms

    2x+1 > = 36

    subtract 1

    2x >=35

    divide by 2

    x > = 17.5

    x must be 18

    x+1 = 19
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