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What is the formula for consecutive numbers?
x-1 and x+1 are consecutive to x, the first before it and the second after it.
What is the product of the first three even numbers?
The first three even numbers are 2, 4, and 6. To find the product of these numbers, you simply multiply them together: 2 x 4 x 6 = 48. Therefore, the product of the first three even numbers is 48.
How do you calculate the sum of all numbers from 1 through 100?
The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.The formula for the sum of an arithmetic sequence is ((first number) + (last number)) x (how many numbers) / 2, in this case, (1 + 100) x 100 / 2.
What is the sum of the even numbers from 2 to 250?
First 125 numbers sum to 125/2 x 126, so first 125 even numbers sum to double that ie 125 x 126 = 15750
How do you find three consecutive even numbers whose sum is 180?
Since they are consecutive even numbers, once you pick x to be the first number, the next even number is x + 2, and then x + 4. x + (x+2) + (x+ 4) = 180 3x + 6 = 180 3x = 174 x = 58 x+2 = 60 x+4 = 62
