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Posted by **Kyle** on Tuesday, November 27, 2012 at 10:45pm.

m n

15 12

10 8

5 4

0 0

- math pls help Ms Sue -
**Ms. Sue**, Tuesday, November 27, 2012 at 10:49pmSorry -- but I don't know.

- math pls help Ms Sue -
**julia**, Tuesday, November 27, 2012 at 11:23pmI am not sure with one, m or n, is an input and which one is output. But I believe the following rule can work:

To get n: 15-3, 10-2, 5-1, 0-0 . As you can see each time the number (3,2,1,0) that you have to subscribe to get n is getting smaller by one. (if m is an input, but if the input is n the same pattern holds but of subscribing you would add 3 then 2 then 1 and finally 0)

Also m is changes by 5, meaning next number is smaller by 5. And n is smaller by 4 each time. Knowing this you can predict what the number before 15 could be (15+5=20) and for n (12+4=16) - the difference between 20 and 16 (20-16=4) which follows the same pattern (its bigger by 1)

I hope it helps andI explained it clear enough

- math pls help Ms Sue -
**julia**, Tuesday, November 27, 2012 at 11:25pmSorry for misspells! Getting late!