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Klio2033 [76]
4 years ago
7

The first number of three consecutive even integers equals the sum of the second and third. Find the three numbers.

Mathematics
2 answers:
Margarita [4]4 years ago
5 0
To get from one even number to the next even number you have to add 2.
Ex. 4, 6, 8. If I start with 4, I have to add 2 to 4 to get to 6, and add 4 to 4 to get to 8. Since we don't know the starting point in this word problem we start with'x' and add 2 and add 4.

x = (x + 2) + (x + 4)
x = 2x + 6
The first equation
Butoxors [25]4 years ago
5 0

Answer:

Step-by-step explanation:

Given that the smallest number of three consecutive even integers is equal to x.

The next two even integers would be x+2 and x+4

Sum = x+2+x+4 =2x+6

This equals first number x

Since these two are equa,

x=2x+6

Hence I option is right.

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Find the value of x and y in this problem.
Brut [27]

\frac{x}{y} = - \frac{3}{2}

given

\frac{x-y}{x+y} = 5 ( cross- multiply )

5(x + y) = x - y

5x + 5y = x - y ( subtract (x - y) from both sides )

4x + 6y = 0 ( subtract 6y from both sides )

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\frac{x}{y} = - \frac{6}{4} = - \frac{3}{2}




8 0
3 years ago
Six students are working to simplify the expression shown.
krok68 [10]

<u>Equivalent and Fully Simplified:</u>

8+7x+4y

<u>Equivalent and not fully simplified:</u>

8+12x-5x+4y

15+7x+4y-7

<u>Note Equivalent:</u>

15-7x-4y

8+17x+4y

8+11y

Step-by-step explanation:

Given expression is:

15+12x-5x+4y-7

We will simplify the expression one by one

8+12x-5x+4y

8+7x+4y

Now we can categorize the expressions in boxes given below

<u>Equivalent and Fully Simplified:</u>

8+7x+4y

<u>Equivalent and not fully simplified:</u>

8+12x-5x+4y

15+7x+4y-7

<u>Note Equivalent:</u>

15-7x-4y

8+17x+4y

8+11y

Keywords: Expressions, simplification

Learn more about expressions at:

  • brainly.com/question/2131336
  • brainly.com/question/2150928

#LearnwithBrainly

<u></u>

6 0
3 years ago
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