Amber7848 Posts: 1, Reputation: 1 New Member #1 Nov 9, 2011, 08:46 PM
How do you write the equation for this sequence 10, 20, 30, 40
 Unknown008 Posts: 8,076, Reputation: 723 Uber Member #2 Nov 9, 2011, 10:23 PM
Try using the arithmetic progression equation?

$T_n = a + (n-1)d$

Tn is the nth term,
a is the first term,
n is the term number in the sequence (n = 1 means first, n = 2 means second, etc)
d is the common difference (the difference between any two consecutive terms).

Can you work it out? :)
 selveena_ Posts: 8, Reputation: 1 New Member #3 Nov 10, 2011, 01:53 AM
Tn=10n
where Tn is the nth term

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