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Triss [41]
3 years ago
15

What is the sum of the sequence 46+47+48+49+...+115

Mathematics
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 


nalin [4]3 years ago
3 0
46+47+48+49+115= 305
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==========================

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