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worty [1.4K]
3 years ago
6

The sum of three consecutive integers is 114. what are the three integers?

Mathematics
2 answers:
RSB [31]3 years ago
5 0

Answer: 37, 38, and 39

Step-by-step explanation: This problem states that the sum of 3 consecutive integers is 114 and it asks us to find the integers.

3 consecutive integers can be represented as followed.

X ⇒ <em>first integer</em>

X + 1 ⇒ <em>second integer</em>

X + 2 ⇒ <em>third integer</em>

<em />

Since the sum of our 3 consecutive integers is 114, we can set up an equation to represent this.

X + X + 1 + X + 2 = 114

We can simplify on the left side by combining the X's and the numbers.

3x + 3 = 114

      -3     -3   ← <em>subtract 3 from both sides of the equation</em>

3x = 111

÷3    ÷3   ← <em>divide both sides of the equation by 3</em>

<em> </em>X = 37

X ⇒ <em>first integer   = 37</em>

X + 1 ⇒ <em>second integer   = 38</em>

X + 2 ⇒ <em>third integer   = 39</em>

<em />

<em>Therefore, our 3 consecutive integers are 37, 38, and 39.</em>

olga nikolaevna [1]3 years ago
4 0

Answer:

Since your question asks for "three consecutive even integers" you can call them as follows:

 

x1 = first even integer

x2 = second even integer

x3 = third even integer

 

Since you know they're both consecutive and even, you know that:

 

x2 = x1 + 2

x3 = x2 + 2

 

This is because there's always a difference of 2 between consecutive even integers. Take a look at these examples:

 

6, 8, 10

 

102, 104, 106

 

514, 516, 518

 

No matter what the even integers are, as long as they're consecutive, they're spaced out by 2 each.

 

You know that the sum of your even integers adds up to 114, so:

 

x1 + x2 + x3 = 114

 

But since x3 = x2 + 2

 

x1 + x2 + (x2 + 2) = 114

 

And since x2 = x1 + 2

 

x1 + (x1 + 2) + ((x1 + 2) + 2) = 114

 

So your final equation will be:

 

x1 + x1 + 2 + x1 +2 + 2 = 114

 

3x1 + 6 = 114

 

3x1 = 108

 

x1 = 36

 

x2 = x1 + 2

 

x2 = 36 + 2 = 38

 

x3 = x2 + 2

 

x3 = 38 + 2 = 40

 

So your consecutive even integers are:

 

36, 38, and 40

 

If you add these all together you get:

 

36 + 38 + 40 = 114. So you know you did it correctly.

 

Hope this helps.

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