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marishachu [46]
3 years ago
10

What is the solution of the following system? Use the substitution method.

Mathematics
1 answer:
Tatiana [17]3 years ago
3 0

Answer:

y-2x=8 (label equation 1)

16+4x=2y (label equation 2)

divide equation 2 by 2 to find y

y=2x+8

sub this in equation 1

(2x+8)-2x=8

2x+8-2x=8

8=8

once you get to this point because 8=8 there are an infinite number of solutions because you can't divide by 0. So the answer is B

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Find the value of x and y.<br><br>help me out ASAP!!​
il63 [147K]

Step-by-step explanation:

13x + 15 = 19x - 9 ( being opposite sides of parallelogram)

19x - 13x = 15 + 9

6x = 24

x = 24 / 6

x = 4

4y + 7° + 10y - 37° = 180° {being co-interior angles }

14y = 180° - 7° + 37°

14y = 210°

y = 210°/ 14

y = 15°

Hope it will help :)

3 0
3 years ago
What is the value of z?
Reil [10]

Answer:

The angle z is 130 degrees.

Step-by-step explanation:

A straight line is 180 degrees.

Now think about how that line looks, you cut 50 degrees off of the whole 180.

So the equation is 180-50=z

z=130

I hope I have been of assistance to you, have a good day.

7 0
3 years ago
Read 2 more answers
Round this number 43.0129 hundredths place
marishachu [46]

Answer:

43.013

Step-by-step explanation:

Theres a nine in the thousands place it has to be 5 or higher to round so its high enough.

4 0
3 years ago
The numbers 1 to 12 must be placed in the circles of the star shown on the right. The sums of the numbers in each row, and the s
gulaghasi [49]

Answer:

The numbers 1 to 12 must be placed in the circles of the star shown on the right. The sums of the numbers in each row, and the sum of the numbers in the six outer circles of the star, must be equal to 26. Arrange the numbers accordingly.

4 0
2 years ago
Consider the point P = (3,8) and the line L, given by the equation y = 3x -4.
Fofino [41]

Answer:

A parallel y = 3x-1

B perpendicular y = -1/3x+9

Step-by-step explanation:

y = 3x-4 is written in slope intercept form  (y=mx+b) so the slope is 3.

A.  If the lines are parallel they have the same slope

m parallel is 3

Using point slope form

y-y1 = m(x-x1)

y-8 = 3(x-3)

Distribute

y-8 = 3x-9

Add 8 to each side

y-8+8 = 3x-9+8

y = 3x-1

This is slope intercept form

B If we want perpendicular lines, the slope is the negative reciprocal

m perpendicular is -(1/3)  = -1/3

Using point slope form

y-y1 = m(x-x1)

y-8 = -1/3(x-3)

Distribute

y-8 = -1/3x+1

Add 8 to each side

y-8+8 = -1/3x+1+8

y = -1/3x+9

This is slope intercept form

3 0
3 years ago
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