20% of a number is x. What is 100% of the number? Assume x>0.

Discussion in 'Calculator Requests' started by math_celebrity, Jan 16, 2020.

  1. math_celebrity

    math_celebrity Administrator Staff Member

    20% of a number is x. What is 100% of the number? Assume x>0.

    Let the number be n. We're given:
    0.2n = x <-- Since 20% = 0.2

    To find n, we multiply each side of the equation by 5:
    5(0.2)n = 5x
    n = 5x
     

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