Question #1ea10

3 Answers
Oct 15, 2017

68,70,72

Explanation:

I'm not sure what you mean by "find two numbers". I'll just show you how to get all three and hopefully you can get your answer from that.

Let's let x be the middle of the three even integers. Then the even integer less than x has to be x-2 and the one above has to be x+2 because the even integers are consecutive.

We know that the sum is 210. Thus:

(x)+(x-2)+(x+2)=210

3x=210

x=70

Thus, our middle even integer is 70. The other even integers are 70-2=68 and 70+2=72.

As we can see, 68,70,72 are consecutive even integers and 68+70+72=210.

Oct 15, 2017

Any two numbers from the set {68,70,72}

Explanation:

Any number is even when it is doubled, so e=2n, ninZZ

So, a set of even numbers will be E={2n,2n+2,2n+4,\cdots}

Three consecutive numbers that add up to 210 will follow the formula:
210=2n+2n+2+2n+4=6n+6

6(n+1)=210

n+1=210/6=35

n=35-1=34

The three consecutive numbers that add up to 210 are {2(34),2(34)+2,2(24)+4}={68,70,72}

Oct 15, 2017

68, 70, 72

Explanation:

Let the consecutive numbers be x, x+2, x+4

x + (x+2) + (x+4) = 210 -> "Statement"

Solving..

x + x + 2 + x + 4 = 210

3x + 6 = 210

3x = 210 - 4

3x = 204

x = 204/3

x = 68

Hence

The numbers are

x = 68,

x + 2 = 70

x + 4 = 72