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lana66690 [7]
3 years ago
10

4x-3y=30 3x+2y=22 (6,-2)

Mathematics
2 answers:
baherus [9]3 years ago
6 0
In place of x you keep 6 and in place of y you keep -2
IrinaVladis [17]3 years ago
5 0

<em>(6,-2) is true for 4x-3y=30 but </em><em>NOT</em><em> for 3x+2y=22.</em>

4*6=24

3*(-2)=-6

24-(-6) changes to 24+6 which equals 30

24+6=30.

3*6=18

2*(-2)=-4

18+(-4) would be changed to 18-4

18-4=14

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XZ=n, WZ=2x-5, and the perimeter of ΔXWZ is 20. What is the value of n?
Sergio039 [100]

Answer:

d.

Step-by-step explanation:

Since it's an isosceles triangle, WX=WZ= 2n-5

Perimeter = n + (2n-5) + (2n-5)

= 5n - 10

The Perimeter is given to be 20

5n - 10 = 20

5n = 30

n = 6

3 0
3 years ago
you burn 200 calories by walking for 60 minutes how many calories will you burn if you walk 12 minutes?​
shusha [124]

Answer:

16.666

Step-by-step explanation:

divid 200 by 12

6 0
3 years ago
3x
mel-nik [20]

Answer:

x = 25°

Step-by-step explanation:

3x + 2x + x + 30° = 180°

6x + 30° = 180°

6x = 150°

x =25°

=> 3x = 25 * 3 = 75°

=> 2x = 25 * 2 = 50°

=> x + 30° = 25° + 30° = 55°

6 0
3 years ago
Which shows the pre-image of triangle X'Y'Z' before the figure was rotated 90° about the origin?
Oksanka [162]

Answer:

pre-image XYZ is X (2, 2), Y (6, 0), Z (1, -1)

The above is the second option in your question.

Step-by-step explanation:

a triangle has points X' (-2, 2), Y' (0, 6), Z' (1, 1)

To rotate the above triangle -90° about the origin you invert the x & y values and change the sign on the new y value.

pre-image XYZ is X (2, 2), Y (6, 0), Z (1, -1)

6 0
2 years ago
Read 2 more answers
What does this mean? and how can y =x or what us the answer to y=x I need help
Readme [11.4K]
At the end of the directions, it talks about parallel, perpendicular, or neither. When x=y, the lines are perpendicular and have infinite solutions. When they are parallel, there is no solution. You'll get an answer like 4=5. Neither means there is only one answer, and you will get one x and one y.
7 0
3 years ago
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