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Triss
[41]
3 years ago
15
What is the sum of the sequence 46+47+48+49+...+115
Mathematics
Answer
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2
answers:
Dmitry
[639]
3 years ago
6
0
46+(n-1)1=115
46+n-1*1=115
46+n-1=115
n+45=115
n=70
Plug back into equation to check.
46+(70-1)1=115
46+69=115
Send
nalin
[4]
3 years ago
3
0
46+47+48+49+115= 305
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