The formula for the first n positive numbers is n x (n+1)/2, so for n=11 the sum is 11 x 12 /2 = 66
The sum of the first three even positive integers is 2 + 4 + 6 = 12.
-21
The first ten positive numbers total 55.
To find the average of integers, add them all together then divide the total by the number of integers.
29 and 30
They total 650. * * * * * It is 2550.
The positive integers up to 4 are: 1, 2, 3, and 4. This is a total of four positive integers.
The sum of the first three even positive integers is 2 + 4 + 6 = 12.
-21
900 This explains it. A positive integer is a palindrome if it reads the same forward and backwards such as 1287821 and 4554. Determine the number of 5-digit positive integers which are NOT palindromes. We start by counting the total number of 5 digit positive integers. The first digit is between 1 and 9, so we have 9 choices. Each of the other 4 digits can be anything at all (10 choices for each). This gives us 9(10)4 = 90000 five-digit positive integers. Now we need to count the number of 5 digit palindromes. Again, we have 9 choices for the first digit and 10 choices for each of the next two. The tens and units digits however are fixed by our choices so far. Therefore, there are only 900 five-digit palindromes. Therefore, the total number of five-digit positive integers which are not palindromes is 90000-900 = 89100.
Combine them together, using the rules of priority (PEMDAS or BIDMAS).
The first ten positive numbers total 55.
If a number is at least 5, and ends in "5" or "0", then it is divisible by 5. To further elaborate, If we are speaking of all numbers, the answer is an infinite number. If we limit it to positive integers, the answer is 50, 45, 40, 35, 30, 25, 20, 15, 10, 5, 0. Eleven total since 0 is a positive number.
To find the average of integers, add them all together then divide the total by the number of integers.
The total number of integers between 100 and 300 that are divisible by three is 66.
Eleven
Product= the total of two integers multiplied together Sum= The total of two integers added together