Posted by **Lea** on Wednesday, November 9, 2011 at 1:47am.

Use the pattern "1 less than 3 times the number." Start with the number 5. What is the 4th number in the pattern?

- Math -
**Lea**, Wednesday, November 9, 2011 at 1:54am
The answer is not 23 or 365.

- Math -
**Anonymous**, Wednesday, November 9, 2011 at 1:55am
The rule "1 less than 3 times the number" makes this equation:

3x-1

1st number: 3 * (5) - 1 = 15 - 1 = 14

2nd number: 3 * (14) - 1 = 42-1 = 41

3rd number: 3 * (41) - 1 = 123 - 1 = 122

4th number: 3 * (122) - 1 = 366 - 1 = 365

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