Summaation of a sequence

or see a smaller scale
from 1 to 10
notice
1+10=11
2+9=11
etc
5+6=11
10/2=5
there are 5 pairs
5*11=55

so

1 to 100
1+100=101
2+99=101
...
50+51=101

100/2=50
there ar 50 pairs
50 times 101=5050

the sum is 5050

3 0

3 years ago

HELP WILL MARK YOU BRAINLIEST NO GUESSES PLZ!!!!

bazaltina [42]

the answer is D and i know cause i just did that and thats the answer

7 0

3 years ago

Read 2 more answers

Simplify. Express your answer as a single fraction in simplest form.<br> x x<br> 5

lbvjy [14]

Answer:

$\frac{x}{20}$

Step-by-step explanation:

Given

$\frac{x}{4}$ - $\frac{x}{5}$

The LCM of 4 and 5 is 20

= $\frac{5x-4x}{20}$

= $\frac{x}{20}$

5 0

2 years ago

What does the called 0.22

VashaNatasha [74]

Its a decimal...........

8 0

3 years ago