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Q: What is the sum of two numbers between 20 and 40 that is 58 and will equal 12 if subtracted?

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The answer is zero !

The two equal numbers that have the sum of 54 are 27 and 27.

The sum of the numbers between 51 and 150 is equal to 10050 - or 50 x 201 - as there are 50 lots of 201 in the sum.

The mass of a nucleus is subtracted from the sum of the masses of its individual components.

-20

Not unless at least one of the numbers is zero.

The sum of all the integers between 100 and 999 is equal to 494450 - which also happens to be the answer to the sum 899 x 500 (which refers to the number of numbers multiplied by the mean number + 0.5).

No

The average of a group of numbers is equal to the sum of the numbers divided by the number of numbers. If you want to find the sum of the five numbers, just multiply 790.6 by 5 to get the sum, which is 3953

The sum of all integers between 1 and 25 is equal to (25 x (25 - 1))/2 = 325.

The sum of the integers between 101 and 300 inclusive is equal to ((101+300) x 200) / 2 = 40100.

I believe here are 51 such numbers.

The difference when subtracting the prime number 2 from the prime number 127 is 125. No other two prime numbers added together or subtracted from each other have a sum or difference of 125. All primes except the number 2 are odd numbers, and two odd numbers added together or subtracted will always produce an even sum or difference.

45 of them.

no

You know that sum of the first n whole numbers is n(n+1)/2. ( it is the same as the first n natural numbers since the zero does not add anything) So lets say you want the sum of all the whole numbers between 3 and 10. ( I made it easy to illustrate the idea.) The sum of the whole numbers between 0 and 3 is 3(4)/2=6 The sum of the whole numbers between 0 and 10 is 10(11)/2=55 So the sum of the whole numbers between 3 and 10 is the (sum of the whole number between 0 and 10) -(sum of whole numbers between 0 and 3) which is 55-6=49 So in general, for whole numbers m and n with m

If the question is asking for the sum of natural numbers between two members of N, then you will have to add all the natural numbers between the two numbers (excluding the actual two numbers). For example, if they ask you to calculate the sum between 2 and 5, your answer should be 3+4=7.

The sum will be 0.

This will happen if the fractional parts of the numbers sum to 1.

-8

2, 3, and 13 are all prime numbers and their sum is equal to 18.

The two numbers are 50 and 63. Their sum is 113 and they have a difference of 13.

The average of a set of numbers is equal to the sum of those numbers divided by the number of numbers. So, one might say that the average function is equal to the sum function divided by the count function.

The prime numbers between 40 and 60 are 41, 43, 47, 53 and 59. These sum to 243.

No.