Answer: 240
Step-by-step explanation:
From the question,
a = first term = -5
d = common difference = 5
Nth term = a + (n-1)d
= -5 + (n - 1)5
= -5 + 5n - 5
= 5n - 5 - 5
= 5n - 10
Therefore, a50 which is the 50th term will be:
= 5n - 10
= 5(50) - 10
= 250 - 10
= 240
The equation for the nth term of the arithmetic sequence -5, 0, 5, 10 is nth term = 5n - 10
Given:
-5, 0, 5, 10
First term, a = -5
Common difference, d = 0 - (-5)
= 0 + 5
= 5
nth term = a + (n - 1)d
= -5 + (n - 1)5
= -5 + 5n - 5
nth term = 5n - 10
a50 = 5n - 10
= 5(50) - 10
= 250 - 10
= 240
a50 = 240
Therefore, a50 is 240
Learn more about arithmetic sequence:
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