1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
natka813 [3]
3 years ago
15

2x-y+8z=133x+4y+52=185x-2y-72=20​

Mathematics
2 answers:
Darya [45]3 years ago
7 0

Answer:

Answer is above (In the image).

Step-by-step explanation:

I am not sure if that is what you were looking for. To convert it to decimals, just input the figures into your calculator.

Free_Kalibri [48]3 years ago
4 0

In my opinion the best way to solve these equations are elimination, therefore I will be giving my answer in this way!

2x-y+8z=13 1️⃣

3x+4y+52=182️⃣

5x-2y-72=203️⃣

We first combine liked terms in equation 2 and 3.

2️⃣turns into 3x+4y=-34 let's call it 2️⃣'

3️⃣turns into 5x-2y=92 let's call it 3️⃣'

Then solve for x

3️⃣'*2

10x-4y=184

3️⃣+2️⃣

13x=150

x=150/13

Now substitute the x back into equation 2️⃣'

3*150/13+4y=-34

450/13+4y=-442/13

4y=-892/13

2y=-446/13

y=-223/13

Now we can substitute this back into 1️⃣ to solve for z

2*150/13- - 223/13+8z=169/13

523/13+8z=169/13

8z=-354/13

4z=-177/13

z=-177/52

This problem is kind of messy so let me restate my answer!

x=150/13

y=-223/13

z=-177/52

<em><u>I really hoped this is correct and it helped, and would appreciate it if you give me brainlliest! If you have any more questions about my solution please ask me in the comments!</u></em>

You might be interested in
The Surface Area of a square pyramid is 3600 ft. The slant height is 80 feet and the base is 20 feet. At most how many 1 foot cu
amm1812

Answer:

10,583 flexible cubes

9915 rigid cubes

Step-by-step explanation:

The equation for the surface area of a square pyramid is area of base plus perimeter of base multiplied by the slant height

Surface area = A + 1/2·p·s

The volume of the pyramid = 1/3×A×h

Where:

A = Area of the base = 20 × 20 = 400 ft²

h = The height of the pyramid = √((slant height)² - ((base side length)/2)²)

h = √(80² - (20/2)²) = 30·√7

The volume of the pyramid = 1/3*400*30·√7 = 4000·√7 ft³ = 10,583.005 ft³

If the cubes are flexible, approximately 10,583 cubes

For rigid cubes we have

Given that the height of the pyramid = 30·√7

The slope of the pyramid = 30·√7/10 = 3·√7

So an increase in height of 1 foot gives a reduction in width of 2/(3·√7)

The bottom can hold 400 cubes

The next layer can hold 19×19 = 361

3rd 361

4th 361

5th 324

6th 324

7th 324

8th 324

9th

Continuing, we get a total of about 9915 rigid cubes in the pyramid.

3 0
3 years ago
Can someone help me with this please
ryzh [129]

Answer:

y=4

Step-by-step explanation:

You can ignore the 3 and 6 because this has no y value change(rise over run)

This is a straight horizontal line so the equation is y=4.

Slope=0

4 0
2 years ago
Angle x is an acute angle in a triangle. If cos x=4/5, then the sin x=
Pepsi [2]
The answer is 3/5 because u need to find the missing side in order to find sin

8 0
3 years ago
Read 2 more answers
Please help me I need it please help I'm begging you
Citrus2011 [14]

Answer:

5

Step-by-step explanation:

def is similar to abc so the 7.5 side is 1.5x bigger so divide 7.5 by 3 and multiply by 2

6 0
2 years ago
How many math problems can i complete in 12 mins?
Tatiana [17]

Answer:

divide 2 by three to know how many you can solve in one min= 2/3= .67

divide 12 by .67 to know how many you can solve in one min= 12/.67= 18.

You can solve 18 problems in 12 min!!

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Other questions:
  • Apply the distributive property to factor out the greatest common factor.<br> 56<br> +<br> 32<br> =
    14·1 answer
  • Can someone solve this for me?
    15·2 answers
  • the chef has eight blocks of butter. she cuts the butter into fourths. how many slices of butter does the chef have now​
    6·2 answers
  • 1/2 spoon of sugar for 2 cups , how many cups for 2/3 sugar of spoon? Explain
    7·2 answers
  • What 2 equal numbers can multiply to make 216?
    5·2 answers
  • What is the graph of the parent linear function. It shows 3 graphs &amp; we pick one! Please help! I have to get this done ASAP!
    14·1 answer
  • Which is the equation of the line with slope 0 passing through the point (-1,-2)?
    14·1 answer
  • What is the area of this triangle in square units? 10 &amp; 7
    9·2 answers
  • The following data represents the amount of snow snow that fell in a week.
    11·1 answer
  • I beeps help please
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!