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Earn +20 ptsQ: What are odd n numbers?
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What is the average of first 10 odd whole numbers?
The average is 10. You will find that the average when adding together the first n odd numbers is always equal to n.
The sum of two consecutive odd numbers is 44?
Let's call the first odd number x. Since the numbers are consecutive, the second odd number would be x + 2. The sum of the two numbers is 44, so the equation would be x + (x + 2) = 44. Solving this equation yields x = 21, which means the two consecutive odd numbers are 21 and 23.
The sum of the first n odd whole numbers is equal to?
900
How do you figure out the sum of the first 25 odd numbers without doing 1 3 5 and so on?
The sum of the first n odd numbers is n squared. 25 x 25 = 625
Is the sum of two even numbers even or odd?
The sum of two even numbers is always EVENYes.Proof:We can consider an even number as 2*n, and an odd number as 2*n+1.The sum of two even numbers would be 2*n+2*m=2*(n+m), an even number.
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