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

Tariffs differ from taxes because tariffs are what?
I’m so confused need help of the height Or the light house
A pool has some initial amount of water in it. Then it starts being filled so the water level rises at a rate of 6 centimeters per minute. After 20 minutes, the
How does a cell maintain homeostasis both within itself and as part of a multicellular organism?
I need help with this
Ella spent her whole allowance of $2.00, plus the 16¢ she had left over from last week, in bubble gum. If the pieces of gum had been a penny cheaper, she would
Choose the study habit that would most help Sophia better remember what she reads. A.Sophia should write down the main ideas while she is reading and study wor
what are expressions
PLEASE HELP ASAP!! A. 0, 2, 4, or 7 B. 0, 2, 3, or 7
I need help plz!!!!!!!