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Any even number can be expressed as a multiple of two. If you have 5 even numbers, then we can label them as such:
a1 = 2*b1
a2 = 2*b2
a3 = 2*b3
a4 = 2*b4
a5 = 2*b5
Where bn is an arbitrary integer
So we therefore have:
a1 + a2 + a3 + a4 + a5 = 2*b1 + 2*b2 +2*b3 + 2*b4 + 2*b5
= 2*(b1 + b2 +b3 + b4 + b5)
We can then let b1 + b2 +b3 + b4 + b5 = c
because our sum of 5 numbers is equal to 2*c, this means that the sum is a multiple of 2, and therefore even.
QED.
What else can I help you with?
Can you add an even number to 15 so that the sum is an even number?
No because two plus 15 equals 17
The sum of 18 and a number equals 24?
the sum of 18 and a number equals 24
What is a number that is even and is a factor of 48 and is a multiple of 6 and the sum of the number equals 3?
12
What number is a factor of 48 a multiple of 6 it is even the sum of the digits of this number equals 3?
12
The sum of this number equals 2?
The sum of a single number is itself. So the only number whose sum equals 2 is 2.
Is the sum of an odd number and an even number always even?
No. Sum of odd + odd = even Sum of odd + even = odd Sum of even + even = even
What is the sum of two odd and even numbers?
The sum of two odd numbers or two even numbers is an even number. The sum of an odd number and an even number is an odd number.
What are interesting facts about the number 18?
1. its even 2.its a number 3.its pretty the sum of its digits times 2 equals 18
what equals the number 30?
The sum of divisors of a number, excluding the number itself, is called its aliquot sum
What is the sum of a odd number and a even number?
The sum of an odd number and an even number is an odd number.
Who discovered when any even number added with a prime number makes a whole number?
It doesn't have to be a prime number and an even number. The sum of any two whole numbers is a whole number. Also, the sum of two even numbers is an even number, the sum of two odd numbers is an even number, and the sum of an odd number and an even number is an odd number.
What happens when you add an odd number and an odd number?
Two odd numbers always sum to an even number. Always. Two even numbers always sum to an even number, and an odd number and an even number always sum to an odd number.
