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shepuryov [24]
3 years ago
9

What is the solution to this system of linear equations? x + y = 4 x − y = 6

Mathematics
2 answers:
Amiraneli [1.4K]3 years ago
5 0
X+y = 4, therefore y = 4-x when you rearrange the equation.
You can subsitute this in: x-(4-x) = 6
-4+x = 6-x
x=10-x
2x = 10
x = 5
Substitute x into the previous equation:
5+y = 4
y = 4-5
y = -1
amid [387]3 years ago
3 0

Answer:

(5, −1)

Step-by-step explanation:

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galina1969 [7]

Answer:

x = 9

Step-by-step explanation:

Isolate the variable. Note the equal sign, what you do to one side, you do to the other. Multiply 3 to both sides.

(x/3)(3) = 3(3)

x = 3(3)

x = 3 * 3

x = 9

x = 9 is your answer.

~

3 0
3 years ago
All of the following should be included in the results section of a t test except:
Nikolay [14]

Answer:

Levene confidence intervals ( b )

Step-by-step explanation:

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5 0
3 years ago
Solve for y<br> 2(3 + 3y) + y = 11
garik1379 [7]
<h2><u>EQUATION</u></h2><h3>Exercise</h3>

2(3 + 3y) + y = 11

First, apply the distributive property:

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6 + 7y = 11

Substract 6 from both sides:

6 - 6 + 7y = 11 - 6

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Divide both sides by 7:

\dfrac{7y}{7} = \dfrac{5}{7}

\boxed{y = \dfrac{5}{7}}

<h3><u>Answer</u>. The value of y = 5/7.</h3>

8 0
3 years ago
Two liters of water are poured into an empty vase shaped like an octagonal prism. The base area is 100 square centimeters. What
Molodets [167]

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Step-by-step explanation:

Since we have given that

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Volume=\text{Base Area}\times height\\\\2\times 1000=100\times height\\\\height=\dfrac{2000}{100}\\\\height=20\ cm

Hence, height of the water is 20 cm.

4 0
3 years ago
The graph of f(x) = 13* - 6 is shown below.g(x) is a transformation of f(x).
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Answer:

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Step-by-step explanation:

8 0
3 years ago
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