If A100 = 100 And A90 = 110, What Is D?
If a100 = 100 and a90 = 110, what is d?
ANSWER :
The value for d is -1.
STEP BY STEP EXPLANATION :
- Linear sistem.
A1 + 99d = 100 (-1)
A1 + 89d = 110
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-A1 - 99d = -100
A1 + 89d = 110
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-10d = 10
d = 10/(-10)
d = -1
Therefore , the value for d is -1.
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