LazyBun LazyBun

09-07-2020
Mathematics

contestada

What is the value of 4(-1+2-3+4-5+6-7+......+1000)???

Respuesta :

unicorn3125 unicorn3125

13-07-2020

Answer:

4(-1+2-3+4-5+6-7+......+1000) = 2000

Step-by-step explanation:

-1+2 = 1

-3+4 = 1

-5+6 = 1

and so on till -999+1000 = 1

1 .... 1000 - these are 1000 numbers, so

1000:2 = 500 pairs with sum equal 1

4(500•1) = 4•500 = 2000

Answer Link

Otras preguntas

what number is 80% of 860?

what document were Montesquieu ideas used in?

Guys, I really really need some help badly! I don't understand how to get the "GCF" aka greatest common factor. Can someone please explain this to me in full de

When does a girl/boy stop growing?

At 2:00p.m., joon and gerace start driving toward each other from points 174 miles apart. They meet at 4:00 p.m. joon's speed was 7 miles per hour greater than

How does the Supremacy Clause affect US judges? A. The Supremacy Clause states that judges can amend state laws. B. The Supremacy Clause states that no judge ca

What fraction of a pound is forty pence?

Does the choice of the base change the area of a parallelogram

how are concussions related to biology

Three times the larger of two numbers is equal to four times the smaller. The sum of the numbers is 21 . Find the number