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21 December, 09:16

Which expression has a value of 15 when n=7

A-43-5n

B-3n-5

C-6n-28

D19-28/n

Answers (2)
  1. R
    21 December, 11:34
    0
    If you calculate them all, you will see that answer is D;

    19 - 28/7 = 19 - 4 = 15
  2. M
    21 December, 12:28
    0
    A-43-5x7=8

    b-3x7-5=16

    c-6x7-28=14

    d-19-28/7=15

    the awnser is D
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