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Ganezh [65]
3 years ago
9

Classify the system and identify the number of solutions. X-2y-2z=8 2x+6y-2z=9 8x-6y-14z=11

Mathematics
1 answer:
seropon [69]3 years ago
8 0

Answer:

xyz=-3.11

Step-by-step explanation:

X+2x+8X-2y+6y-6y-2z-2z-14z=8+9+11

11x-8y+6y-18z=28

11x-2y-18z=28

xyz(11-2-18)=28

xyz(11-20)=28

xyz(-9)=28

xyz=28/-9

xyz=-3.11

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Ethan has $150. He wants to buy 4 identical bouquets of flowers but he needs to have at least $20 left after buying the flowers.
pochemuha
150-4x>=20
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7 0
3 years ago
Choose the equation that completes the equation. 24 ÷ 6 + 20=
Lynna [10]

Hi Marisa255,

Solution:

First lets solve the given equation:

= 24 / 6 + 20

= 4 + 20

= 24

Now Lets solve A:

= 3(7 + 1)

= (3 x 7) + (3 x 1)

= 21 + 3

= 24

So we see that A and the equation given have the same answers.

Final Answer:

A. 3(7 + 1)

3 0
4 years ago
How do i graph the equation -x + 2y = 2
Black_prince [1.1K]
<h2>Greetings!</h2>

Step-by-step explanation:

Firstly, set the x value as 0:

-0 + 2y = 2

2y = 2

y = 1

So when x = 0, y = 1

Now set y to 0:

-x + 2(0) = 2

-x = 2

x = -2

So when y = 0, x = -2

Simply plot the two following points:

(0 , 1) and (-2 , 0)

And don't forget to join these two points up!

Attatched is an image of this graph.


<h2>Hope this helps!</h2>

4 0
4 years ago
Determine the value of e.
Softa [21]

9514 1404 393

Answer:

  A)  16

Step-by-step explanation:

The ratio of long-side to short-side is the same for all of these similar triangles, so we have ...

  e/8 = 8/4

  e = 8(8/4) = 8(2) = 16

The value of e is 16.

7 0
3 years ago
Please help, whats the right answer?
miv72 [106K]

Answer:

A. 1,485 cubic cm.  B. 27

Step-by-step explanation:

The new prism is dilated by a factor of 3, that means it's made bigger, 3 times bigger on each side.

The dimensions of the new prism are then 12 cm by 7.5 cm by 16.5 cm.

Its volume is then of 12 x 7.5 x 16.5 = 1,485 cubic cm

To answer the second question...

Let's calculate the volume of the original prism:

The original prism's volume was 4 x 2.5 x 5.5 = 55 cubic cm

The new volume is then 1485 / 55 = 27 times bigger than the original.

Which is normal, since we increased each side (dimension) by a factor of 3, so 3x3x3 = 27.

6 0
3 years ago
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