The sequence 3, 7, 11, 15 is an arithmetic sequence where each term increases by 4. The recursive rule can be expressed as ( a_n = a_{n-1} + 4 ) with ( a_1 = 3 ). The explicit rule for the nth term is ( a_n = 3 + 4(n - 1) ) or simplified, ( a_n = 4n - 1 ).
Add 3 each time
The pattern will be +2, +3, +4, +4
t(n) = 5 + 2*n
Oh, dude, that's like a sequence question. So, the rule here is that you just add the next number by increasing increments each time. You start with 6, then add 2 to get 8, then add 3 to get 11, then add 4 to get 15, and so on. It's like a number staircase, but with math.
For a linear sequence (same differences) look for the difference first. E.g.7, 11, 15, 19 ...This has a difference of 4 so the first part of the rule is 4n. (the rule follows the 4 times table)Now compare the sequence to the 4 times table7, 11, 15, 19 ...4, 8, 12, 16 ...Out sequence is always 3 larger than the four times table so we adjust our rule by adding 3. So our final rule is 4n + 3.
U1 = 27 U{n+1} = U{n} - 3
There's no rule. Some start at 11 and some girls start at 15. everyone's body is different.
Add 3 each time
The pattern will be +2, +3, +4, +4
The rule is t(n) = 5 + 2*n, where n = 1, 2, 3, ...
t(n) = 5 + 2*n
Saved a third of the amount earned.
Oh, dude, that's like a sequence question. So, the rule here is that you just add the next number by increasing increments each time. You start with 6, then add 2 to get 8, then add 3 to get 11, then add 4 to get 15, and so on. It's like a number staircase, but with math.
The sum of addends 11 and 15 is: 11 + 15 = 26
15% off 11 = 11 - (0.15 x 11) = 9.3515% of 11 is 1.65
-26
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