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Dmitry_Shevchenko [17]
3 years ago
14

Solve by elimination/addition -7x-12y=27 x+4y=-13

Mathematics
2 answers:
Galina-37 [17]3 years ago
7 0

Answer:

point form: (3,-4)

equation form: x= 3, y=-4

Step-by-step explanation:

liq [111]3 years ago
5 0

The answer is,

x = 3, y = -4

I added the picture of the graph.

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If an equilateral triangle has an angle of 3 X what is the value of X
Paraphin [41]
<h2>Greetings!</h2>

Answer:

x = 20

Step-by-step explanation:

In an  equilateral triangle, everything is the same; line length and angles. Each angle in an  equilateral triangle is:

180 ÷ 3 = 60

So 3x = 60

Divide both sides by 3 to get x:

x = 20


<h2>Hope this helps!</h2>
6 0
3 years ago
Margo won 24 out of 36 matches. at this rate how many matches would she win out of her next 27
Alex_Xolod [135]
Okay, so we know she won 24 out of 36. We can make a ratio out of this.
\frac{24}{36}
We can now make a proportion since we know she will be playing another 27 matches.
36+27=63
\frac{27}{36} =  \frac{x}{63}
X is the number of matches she'll win during the next 27 rounds.
Now we have to divide 63 by 36 to see what we need to multiply to get the numerator.
63÷36=1.75
Now multiply both the numerator and denominator to solve for x.
\frac{27}{36} × \frac{1.75}{1.75}
(we are allowed to multiply by this because it's a form of 1 and therefore both the numerator and denominator are being multiplied by the same number)
This equals \frac{47.25}{63}
So if you want to round you could say she will win at least 47, but it's kind of difficult to say she won 47 and a quarter because...well....how do you win a quarter of a game.
Hoped that helped haha :)
4 0
3 years ago
Simplify the following number by using the imaginary number i square root of -19
lakkis [162]

Answer:

Exact form:   -√19

Decimal form:  −4.35889894...

3 0
3 years ago
Mark had 3 quarts of milk how many pints of milk did he have
mamaluj [8]
Mark had 6 pints of milk.
7 0
4 years ago
Read 2 more answers
if a point works in both equations of a linear system, then that point must be the solution to the linear system when you solve
mariarad [96]
True, if a points works in both equations of a linear system, then that point is the solution.
4 0
4 years ago
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