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21 February, 21:48

Evaluate 15/r - 1 when r = 5

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Answers (2)
  1. 21 February, 21:59
    0
    (15/r) - 1 ... when r = 5

    (15/5) - 1 =

    3 - 1 =

    2 <==
  2. 21 February, 22:11
    0
    15/r-1=2

    do 15/r first. So it's 15/5=3. Next, subtract 1 from that answer and you get 2.
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