What is the sum of all possible multiples of 5 less than 500

Mathematics

1 answer:

Leona [35]3 years ago

8 0

Answer:

We need to find 5 + 10 + 15 + ... + 485 + 490 + 495. There are 99 numbers that are being added. To add this we can do 5 + 495, 10 + 490, 15 + 485 and so on. These pairs have a sum of 500 and since there are 98 / 2 = 49 pairs their sum is 500 * 49 = 24500. Since there is an odd number of numbers that are being added, there is one number that does not belong to a pair. That number is the 50th number in the list which is 50 * 5 = 250. Therefore the answer is 24500 + 250 = 24750.

You might be interested in

Easyish PreCalculus; Find the exact values of the six trigonometric functions of the given angle. (you can use a calculator.) (D

Brut [27]

Answer:

there is no given angle here man

Step-by-step explanation:

5 0

3 years ago

Simplify the problem given.

maks197457 [2]

Step Number 1. is to Simplify $\frac{4}{8} to \frac{1}{2}$

Step Number 2. <span>Simplify so you get </span> $\frac{x}{4} + \frac{5}{3}$

Done! :)

4 0

3 years ago

Oscar saves 40% of his monthly check for college. He earned $450 last month. How much money did Oscar save for college?

Mrrafil [7]

Answer

It is $180

Step-by-step explanation:

You do 450 times 40% and you get $180

4 0

3 years ago

5.) - 7(-2x - 9) = 133<br> how do you solve this

Ray Of Light [21]

Answer: x= 5

Step-by-step explanation: Distribute the -7 into the parentheses, we get 14x+63=133. You then minus 63 on the left side of the equation and on the right side of the equation. You will get 14x=70. You then solve x by dividing 70 by 14 you will get x=5.

4 0

3 years ago

The Sequence of -2,-14,-26,-38

icang [17]

Answer:

-12

Step-by-step explanation:

Since we can subtract 12 from -2 and get -14, we might try subtracting 12.

5 0

3 years ago