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2 January, 04:42

Emily chooses two numbers. She adds the two numbers together and divides the result by 2.

Her answer is 44. One of Emily's numbers is 12. What is Emily's other number?

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Answers (2)
  1. 2 January, 05:03
    0
    (x+y) / 2 = 44

    let x - 12

    (12+y) / 2 = 44

    12+y = 44*2

    12+y = 88

    y = 88-12

    y = 76
  2. 2 January, 05:12
    0
    Easiest way is algebra so

    x+y are 2 numbers

    if (x+y) / 2=44

    and x or y=12 (pic one)

    so if x=12

    subsitute

    (12+y) / 2=44

    multiply both sdies by 2 to clear fraction

    12+y=88

    subtract 12 from both sides

    y=76

    the numbers are 12 and 76
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