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Zepler [3.9K]
4 years ago
9

2x-y-z=4, -x+2y+z=1, 3x+y+z=16. Please help

Mathematics
1 answer:
tangare [24]4 years ago
6 0
1. X=2+1/2y+1/2z

2. X=-1+2y+z

3. X=16/3-1/3y-1/3z
You might be interested in
25.
bulgar [2K]

Using the slope concept, it is found that the angle between the ladder and the floor will be of 33.69º.

<h3>What is a slope?</h3>

The slope is given by the <u>vertical change divided by the horizontal change</u>, and it's also the tangent of the angle of depression.

In this problem, we have that:

  • The angle is of 45º.
  • The vertical distance is the height of h.
  • The horizontal distance is of 3m.

Hence:

tan(45º) = h/3.

1 = h/3.

h = 3 m.

If the ladder slides 1 m down, the height will be of 2m, hence the angle will be given as follows:

\tan{\theta} = \frac{2}{3}

\theta = \arctan{\left(\frac{2}{3}\right)}

\theta = 33.69^\circ

More can be learned about the slope concept at brainly.com/question/18090623

#SPJ1

8 0
2 years ago
If alex is 14 years old, and ben is 17 years old, in how many years will the sum of their ages be 169 years?
navik [9.2K]
169... because 14+x + 17+x = 169
3 0
4 years ago
Read 2 more answers
Please help, this is for 8th grade math.
expeople1 [14]

Answer:

(2,-2)

Step-by-step explanation:

The first step is to substitute y in the first equation with the right side of the second equation because they both equal to y.

-3x+4 = 4x-10

-3x-4x+4-4 = 4x-4x-10-4

-7x = -14

-7x/-7 = -14/-7

x = 2

Plugin 2 for x for either equation to solve for y, I'll be using the second equation, but either one is fine.

y = 4(2)-10

y = 8-10

y = -2

Plugin x = 2 and y = -2 into (x,y), and you get (2,-2)

6 0
3 years ago
Lynn paid $12.21 for ribbon. The cost per yard was $1.48.
just olya [345]

Answer:

D

Step-by-step explanation:

All we need to do is divide the values we are given.

12.21 / 1.48 = 8.25

Best of Luck!

7 0
3 years ago
Read 2 more answers
What do you call the point at which a graph intersects the y-axis?
AURORKA [14]
The Y-intercept is the point at which the graph intersects the y-axis
Enjoy the rest of you're night!!!!
7 0
3 years ago
Read 2 more answers
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