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son4ous [18]
3 years ago
11

Question 3(Multiple Choice Worth 1 points)

Mathematics
2 answers:
GarryVolchara [31]3 years ago
6 0

Answer:

Division property of equality

Step-by-step explanation:

2x + 2y = 14 -----------(1)

−4x + 6y = 12---------(2)                       Given

we can divide through the equation  equation (2) by 2

The equation becomes;

-2x + 3y = 6 ----------(3)     Division property of equality

(4x ÷2 = 2x       6y÷2 =  3y            12÷2=6)

2x + 2y = 14 -----------(1)

-2x + 3y = 6 ----------(3)

To eliminate x variable, we will add equation (1) and equation (3) together

(2 x+ [-2 x] = 2 x-2 x = 0           2 y + 3 y =  5 y       14 + 6=20)

The equations become;

5y  =   20

To get the value of y, we divide both-side of the equation by 5

5y/5    =  20/5

y  =  5

To find the value of x, we will simply substitute y =5 in equation (1)

2x + 2y = 14

2x  +  2(5)   = 14

2x + 10  = 14

subtract 10 from both-side of the equation

2x + 10 -10 = 14 -10

2x  =  4

Divide both-side of the equation by 2

2x/2   =  4/2

x = 2

x = 2 and y =5

Tom [10]3 years ago
3 0

Answer:

Your answer is Division Property of Equality

Step-by-step explanation:

It <em>could</em> be Addition Property of Equality, but the second number shows it is actually the division property of equality. Here's my work:

-4x + 6y = 12 Given

(-4x/2) + (6y / 2) = (12/2)

--Simplify--

−2x + 3y = 6

Sidenote: I'm doing the test right now haha

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ziro4ka [17]
This is an EXPONENT. 

To do this all we need to do is multiply the base by itself how many times the power says.

(-6)² = (-6) × (-6) = 36

Recall that any negative number times another negative number is positive so that is why this would be positive.  

So, (-6)² = 36

Hope I helped ya!! 
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ale4655 [162]

Answer:

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Ann [662]

Answer:

130

Step-by-step explanation:

10+10+5+5=30

50+50=100

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5 0
3 years ago
Solve for n:<br> 3n + 2n - 17 = 38
Lyrx [107]
Get all the n together so 3n+2n=5n
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8 0
3 years ago
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For the triangles to be congruent by hl, what must be the value of x? 8 9 17 34
lora16 [44]

Using equations we know that the value of x needs to be (E) 4 to make HL congruent to AC.

<h3>What are equations?</h3>

A mathematical equation is a formula that uses the equals sign to represent the equality of two expressions.

The point-slope form, standard form, and slope-intercept form are the three main types of linear equations.

So, HL is a hypotenuse that will be congruent to the hypotenuse AC.

We know that HL is 3x + 3.

Ac is 15.

Then the equation will be:

3x + 3 = 15

Now, solve the equation to get x as follows:

3x + 3 = 15

3x = 15 - 3

3x = 12

x = 12/3

x = 4

Therefore, the value of x needs to be (E) 4 to make HL congruent to AC.

Know more about equations here:

brainly.com/question/28937794

#SPJ4

Correct question:
For the triangles to be congruent by hl, what must be the value of x?

a. 8

b. 9

c. 17

d. 3

e. 4

8 0
1 year ago
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