One-half a number is fifty

Discussion in 'Calculator Requests' started by math_celebrity, Jan 18, 2024.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    The phrase a number means an arbitrary variable. We can pick any letter a-z except for i and e.

    Let's choose x.

    One-half a number means we divide x by2:

    The word is means equal to. We set x/2 equal to 50 for our algebraic expression
    x/2 = 50

    If the problem asks us to solve for x, we cross multiply:
    x = 2 * 50
    x = 100

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