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primary 5 | Maths | Whole Numbers
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Alisha rai
Alisha Rai

primary 5 chevron_right Maths chevron_right Whole Numbers chevron_right Singapore

Please help to answer of explain. None of teacher have taught me this so i'm not sure.

Date Posted: 2 months ago
Views: 38
Edward Yang
Edward Yang
2 months ago
The terms in the sequence increases by 7.

2 + 7 = 9

9 + 7 = 16

16 + 7 = 23

To find out the 50th term in the sequence, we can look at the following pattern:

1st term = 2 = 0(7) + 2

2nd term = 9 = 1(7) + 2

3rd term = 16 = 2(7) + 2

Therefore, the 50th term is 49(7) + 2 = 345.

We are trying to find the nth term, such that (n - 1)(7) + 2 = 695.

Subtract 2 on both sides:

(n - 1)(7) = 693

(n - 1) = 99

n = 100

Hence, the number 695 is the 100th term in the sequence.
Alisha rai
Alisha Rai
2 months ago
Thanks! I hope this helps

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Keith Lincoln Lee
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Hope this helps