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Q: What is the sum of 1 plus 3 plus 5 plus 7 plus 497 plus 498 plus 500?

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497 + 498 + 499 + 500 = 1994 (-496) + (-495) +...+ (-1) + 0 + 1+ ... + 500 = 1994 (-1993) + (-1992) + ... + (-1) + 0 + 1 + ... 1994 = 1994

The sum of the first 500 positive integers is: 1 + 2 + 3 + ... + 498 + 499 + 500 = 125250

To find the sum of a set of numbers, you can use this formula: ∑ = (x)(x+1)/2 That is..... The sum = (The number of samples)(The number of samples + 1)/2 Example: What is the sum of all numbers between 500 and 1000? Assuming that we do not include 500 or 1000 in our answer, we have 498 numbers to add up. Let's put that into the formula.... ∑ = (498)(498+1)/2 ∑ = (498)(499)/2 ∑ = (248,502)/2 ∑ = 124,251 The Answer is 124,251

725

The sum is 1300

The sum of 30,000,000 and 500 is 30,000,500

The options are infinite: Ex: 250 + 250 1 + 499 2 + 498 3 + 497 4 + 496 5 + 495 etc...

To find the mean, you need to add all the values and divide by the number of values. Looking closely at the data, you'll notice that the first number is the negative of the last, the second number is the negative of the last but one and so on. This means that the sum of the pairs of numbers at the same position from each end is 0, and so the sum of all the numbers is 0. If the sum is zero, then dividing this by any number greater than zero will lead to zero. The number of elements in the dataset is greater than zero. Thus the mean of the dataset {-500, -499, -498, ..., -1, 0, 1, ..., 498, 499, 500} is 0. If you want to know how many elements there were, then there are 500 - -500 + 1 = 1001 elements in the data set.

500 + 4 = 504

8008

500 + 400 = 900

The sum of the first 500 counting numbers (1-500) is 125,001.

The sum answer = 3440

the sum of 1951 is 1952+500

The sum of the first 500 odd numbers is 250,000.

The sum of all multiples of 3 below 500 is the sum of 3 + 6 + ... + 498 = 41583The sum of all multiples of 5 below 500 is the sum of 5 + 10 + ... + 495 = 24750Depending upon the interpretation of "of 3 and 5", the answer is one of:The sum of all multiples of both 3 and 5 below 500 is the sum of 15 + 30 + ... + 495 = 8415The sum of all multiples of 3 below 500 and all multiples of 5 below 500 is 41583 + 24750 = 66333Since the multiples of both 3 and 5 (that is 15, 30, ...) have been counted twice - once in the multiples of 3 and once in the multiples of 5 - the sum of all multiples of 3 or 5 or both below 500 is 41583 + 24750 - 8415 = 57918I have emphasised the word below with regard to 500 since 500 is a multiple of 5, but 500 is not below (less than) itself, that is the multiples are of the numbers 1, 2, 3, ..., 499. If the question was intended to mean less than or equal to 500, add an extra 500 to the multiples of 5 above, making the sum of the multiples of 5 be 25250 and the final sums (1) 8415, (2) 66833, (3) 58418.

432 + 500 = 932

(Y + M) - 5 = 498 where Y is the number of your songs and M is the number of mine.

The sum of the first 500 odd counting numbers is 250,000.

The sum of the first 500 positive integers is: 125,250

The sum is 375,750.

The sum of 75 plus 5 is 80.

The sum of 3 plus 4 is 7.

If the question means 1 + 2 + 3 + ... + 500, then the answer is 500*501 / 2 = 125,250. If the sum is not resticted to integers then the answer is infinite. Not only that, but the answer is infinite if the upper limit is 2 or even 1.000...01

When the sum of a number plus 3 is squared, it is 11 more than the sum of the number plus 2 when squared.