ryleeleonard2005
ryleeleonard2005 ryleeleonard2005
  • 01-09-2021
  • Mathematics
contestada

please help find the sum of all even integers from 2 to 100

Respuesta :

DiegoDogy DiegoDogy
  • 01-09-2021

Answer:

2550

Step-by-step explanation:

2 + 4 + 6 + ……… + 98 + 100

= (2×1) +(2×2) + (2×3) + ……… + (2×50)

= 2 × (1 + 2 + 3 + ………. + 50)

The sum (S) of n natural numbers is given by -

S = (n × (n + 1) )/2

Therefore,

2 × (1 + 2 + 3 + ……… + 50)

= 2 × ((50 × 51)/2)

= 2 × (2550/2)

= 2 × 1275

= 2550

Hope this helps!

Answer Link

Otras preguntas

Is it possible to cut a scalene triangle into two congruent triangles?
I don't get this question
What percent of 25 is 12? SIMPLE PLEASE EXPLAIN YOUR ANSWER AS WELL
estimate the answer to the following problem to the nearest 10 13+46+87= a. 130 b.155 c.160 d.150
1. In a day care facility, items such as exit doors and heating appliances are inspected by the A. building and safety committee. B. fire department. C. sanit
What is the recommended first step to take in responding to an emergency? A. Call 911. B. Do a 10-second survey. C. Care for the injured person.
A study uses a sample of 200 college students to learn about the number of hours they studied for their final exams. The mean number of hours was 136 and the s
3 equivalent ratio 1/10
how do I solve 3(-2+3)>12
Who was the most sacred person in Egyptian society?