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Triss [41]
3 years ago
8

Solve the given system, using the substitution method.

Mathematics
2 answers:
barxatty [35]3 years ago
8 0
The general equation of a line is expressed as:

y = mx + b

We have to write the equations to this form to see whether from there we can conclude something.

y = 3x – 7             (1)
6x – 2y = 12        (2)
-2y = 12 - 6x
y = 3x -6

We can see that both equations have the same slope and different values of y-intercept. Therefore, they are parallel and would never meet. 

The correct answer is option C, there is no solution.

alexandr1967 [171]3 years ago
5 0
Y = 3x - 7 . . . . . (1)
6x - 2y = 12 . . . (2)

Putting (1) into (2) gives
6x - 2(3x - 7) = 12
6x - 6x + 14 = 12
14 = 12

Therefore, there is no solution.
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Q#1 please help t o resolve
Veseljchak [2.6K]

Answer: option. y=-1.33x; 2.67

Solution:

If y varies directly with x, the relation between y and x is:

y=kx

where k is a constant of proporcionality.

We know y=8 when x=-6. Replacing these values in the equation above:

8=k(-6)

8=-6k

Solving for k: Dividing both sides of the equation by -6:

8/(-6)=-6k/(-6)

-1.33=k

k=-1.33

Then the relation between y and x is:

y=kx→y=-1.33x

What is the value of y when x=-2?

Replacing x by -2 in the formula:

y=-1.33x→y=-1.33(-2)→y=2.66

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3 years ago
Which statement is true about the ratios of squares to circles in the tables? O The ratios in Table A are greater than the ratio
Novay_Z [31]

[B]   The ratios in Table B are greater than the ratios in Table A.

Step-by-step explanation:

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3 years ago
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Given f(x)=-5x+2, find f(6)
BaLLatris [955]
It would be -5(6)+2=-28
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You have a rack that can hold 30 CDs. You can fit 7 more CDs on the rack before the rack is full. How many CDs are in the rack?
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x = 30 - 7
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Very easy! PLEASE HELP I will mark brainliest
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Answer:

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Step-by-step explanation:

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