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castortr0y [4]
3 years ago
9

What's 2x+3y=6 and x-3y=9?

Mathematics
1 answer:
Vedmedyk [2.9K]3 years ago
4 0
Set up a system of equations:

2x+3y=6
x-3y=9

You can solve this with elimination by adding the two equations together:

3x+0y = 15
3x=15
x=5

Then, plug this value back into either of the original equations to find the y value:

5-3y=9
-3y=4
y= -4/3

The point of intersection is (5,-4/3)
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Identify two composite numbers that each have 8 as a factor.
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Two composite numbers that have 8 as a factor are 16 and 24.
7 0
2 years ago
Solve 732 H5 71z so what would x equal?
marin [14]
If the bases ar same, assume exponents are same

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x^z=x^m
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so
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3x+5=1-x
solve
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7 0
3 years ago
The equation y = 5.5x represents a proportional relationship. What is the constant of proportionality?
Firlakuza [10]

Answer:

Y = 5.5x

The constant is 5.5

since no matter what y and x are there will always be a 5.5 difference

Also mark brainliest please

8 0
3 years ago
What is does a equal
Blababa [14]

Answer:

<u>a = 13</u>

Step-by-step explanation:

We should know that: The sum of the interior angles of the triangle = 180°

Given the measure of the angles: (6a - 2) , (5a - 13) and (5a - 13)

So,

(6a - 2) + (5a - 13) + (5a - 13) = 180°

16 a - 28= 180               ⇒ Add 28 to both sides

16 a = 180 + 28 = 208  ⇒ Divide both sides by 16

a = 208/16 = 13

5 0
3 years ago
What is the solution to the inequality |2n+5| &gt; 1 ?
Serhud [2]

Answer:

n > -2                 or      n < -3

Step-by-step explanation:

|2n+5| > 1

We have two solutions one positive and one negative.  Remember to flip the inequality symbol for the negative

2n+5 > 1         or 2n+5 < -1

Subtract 5 from each side

2n+5-5 > 1-5         2n+5 -5 < -1 -5

2n >-4                    2n < -6

Divide by 2

2n/2 > -4/2             2n/2 < -6/2

n > -2                 or       n < -3

4 0
3 years ago
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