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28 November, 05:00

Justin is 10 years less than half his father's age. if justin is 12 years old, how old is his father?

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  1. 28 November, 05:04
    0
    22 because 12 plus 10 is 22, or because 10-12=2 2+20=22 20+2 because 10nis half of 20
  2. 28 November, 05:08
    0
    Make an equation:

    J = 1/2F - 10

    Where 'J' represents Justin's age and 'F' represents his Father's age.

    Plug in 12 for J:

    12 = 1/2F - 10

    Add 10 to both sides:

    22 = 1/2F

    Divide 1/2 to both sides or multiply by its reciprocal, 2:

    F = 44
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