rileyxkoala rileyxkoala

01-03-2021
Mathematics

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find the n term of this number sequence 15,12,9,6

find the n term of this number sequence 151296 class=

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Batanouny Batanouny

01-03-2021

this sequence is decreased by 3 for every digit

so

-3n+18

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zaidb27 zaidb27

01-03-2021

-3n+18

1) Find the difference (Decreasing by -3)
2) N is -3
3) Find the number before the first digit (15+3 = 18) as if we follow the difference of -3: 18-3 gives us 15.

Therefore, the nth term is -3n+18

Answer Link

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