Answer:
Step-by-step explanation:
Arithmetic sequence:
In an arithmetic sequence, the difference between consecutive terms is always the same, and this difference is called common difference.
The nth term of an arithmetic sequence is given by:
In which is the first term and d is the common difference.
In this question:
. So
Find the value of a_5
So
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Answer:
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Answer:
2/9
Step-by-step explanation:
Given: (12/18)/(12/4)
Simplify denominator: (12/18)/3
Use rule: (12/18)/3=12/(18*3)=12/54
Simplify: 12/54 -> 6/27 -> 2/9
So 2/9 is the answer
Answer:
20%
Step-by-step explanation:
40+ 40= 80
100-80= 20
So therefore, 20 are about other subjects
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