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Q: What is the pattern rule for -3 and 6 and -9 and 12 and -15?

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The nth term, t(n) = 3*n, where n= 1, 2, 3, etc

Add 3 each time

The pattern will be +2, +3, +4, +4

multiplication pattern

255 ÷ 1 = 255 255 ÷ 3 = 85 255 ÷ 5 = 51 255 ÷ 15 = 17 255 ÷ 17 = 15 255 ÷ 51 = 5 255 ÷ 85 = 3 255 ÷ 255 = 1

The pattern rule is: 4 5 6 7 8 and so the next number will be 33+9 = 42

15

-12

9

The difference increases by one. 3, 6, 10, 15, 21, 28, 36 and so on.

Start at 1. Multiply by 3. Subtract 1. Multiply by 3. Subtract 1. Repeat this pattern.

It is: 3 6 12 24 48 .... double up each time

15-3=12

3 and 15 15/3 = 5 15 - 3 = 12

3/5 = 9/15 and is not equal to 12/15

3.75

If you mean: 2 5 11 23 47 then they are increasing by 3 6 12 24

Multiply by 3 !

-15

15

3 - (-12) = 3 + 12 = 15.

LCD(3, 12, 15) = 60

15-3=12

15

The GCD of 12 and 15 is 3.