3 years ago

Answer like gauss 1+3+5+7+...=999

Mathematics

1 answer:

raketka [301]3 years ago

7 0

1+3+5+7+...+999 =

= 1+2+3+4+...+500

+1+2+3+...+499

= 2·(1+2+3+...+499) + 500

= 2·(499·500)/2 + 500

= 499·500 + 500

= 500·(499 + 1)

= 500·500

= 250.000

You might be interested in

Why do you think gas stations often quote a price per gallon that ends in 9/10 of a cent? Do you think this is an appropriate us

arlik [135]

The practice of tacking 9/10 of a cent on the end of a gas price goes back to when gas cost only pennies per gallon and was a tax imposed by state and federal governments. Gas stations added the fraction of a cent on the end of the price instead of rounding up the price.

8 0

2 years ago

2+1/6y=3x+4 solve for y

sertanlavr [38]

<span>2+1/6y=3x+4 solve for y
</span>
Answer y=18x+12

6 0

3 years ago

Read 2 more answers

Alfonso went to famous Sam’s appliance store

bonufazy [111]

This is a true statement, or false depending on whether Alfonso actually did or not. There's no proof.

6 0