SOLUTION: 101rd term of the arithmetic sequence if a1=-5 and d=-4

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Question 1203519: 101rd term of the arithmetic sequence if a1=-5 and d=-4
Found 2 solutions by math_tutor2020, ikleyn:
Answer by math_tutor2020(3817)   (Show Source):
You can put this solution on YOUR website!

a1 = -5 = first term
d = -4 = common difference

an = nth term of an arithmetic sequence
an = a1 + d*(n-1)
an = -5 - 4(n-1)
a101 = -5 - 4*(101-1)
a101 = -405

Answer: -405

Answer by ikleyn(52802)   (Show Source):
You can put this solution on YOUR website!
.

To get the 101th term of the AP with a1 = -5 and d= -4, you need make 100 steps
to the left in the number line, starting from a1 = -5; each step length is 4 units.

It is obvious that you will be at the point   -5 - 400 = -405, finally.

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    - Arithmetic progressions
    - The proofs of the formulas for arithmetic progressions
    - Problems on arithmetic progressions
    - Word problems on arithmetic progressions
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SOLUTION: 101rd term of the arithmetic sequence if a1=-5 and d=-4​

SOLUTION: 101rd term of the arithmetic sequence if a1=-5 and d=-4