Add the even numbers between 1 and 100
1 answer:
Answer:
5050
Step-by-step explanation:
We use the ecuation:
![S=\frac{n(n+1)}{2}](https://tex.z-dn.net/?f=S%3D%5Cfrac%7Bn%28n%2B1%29%7D%7B2%7D)
Where:
S = Addition of the numers since 1 even n
n = Final number
In this case n = 100, then
![S = \frac{100*(100+1)}{2} = 5050](https://tex.z-dn.net/?f=S%20%3D%20%5Cfrac%7B100%2A%28100%2B1%29%7D%7B2%7D%20%3D%205050)
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