Math

I am a number between 30 and 60 . My ones digit is three less than my tens digit . I am a prime number . What number am I ?

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  1. These are the prime numbers between 30 and 60

    31, 37, 41, 43, 47, 53, 59

    Which one of those meets the other criterion?

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    Ms. Sue
  2. tens digit = X.
    ones digit = x - 3.

    10x + (x-3) = 11x - 3 = the number.
    30 < 11x-3 < 60.
    33 < 11x < 63,
    3 < x < 5 8/11.
    X = 4 or 5.
    Let x = 4.

    11x - 3 = 11*4 - 3 = 41 = the prime number between 30 and 60.

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  3. What is between 30 and is a prime number. The ones is three less than the tens. What number am I.

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