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
bearhunter [10]
3 years ago
7

-3y + 8x = 36 6x + y = -21

Mathematics
1 answer:
tiny-mole [99]3 years ago
7 0

Answer:

x=−27/26

and y=−192/13

Step-by-step explanation:

6x+y=−21;8x−3y=36

Step: Solve6x+y=−21for y:

6x+y=−21

6x+y+−6x=−21+−6x(Add -6x to both sides)

y=−6x−21

Step: Substitute−6x−21foryin8x−3y=36:

8x−3y=36

8x−3(−6x−21)=36

26x+63=36(Simplify both sides of the equation)

26x+63+−63=36+−63(Add -63 to both sides)

26x=−27

26x

26

=

−27

26

(Divide both sides by 26)

You might be interested in
I'LL GIVE BRAINLIEST IF YOU EXPLAIN THE ANSWER:
USPshnik [31]

Answer:

C) 16 cm^2

Step-by-step explanation:

scale is 1:8 so 2 cm^2x8=16

6 0
3 years ago
Read 2 more answers
Can someone please explain to me how to get the answer for the question is the picture? I don't get it at all, and the internet
AlekseyPX

Answer:

The original price of the item is $28.

Step-by-step explanation:

So to find the original price, we have to divide the sale price by the result of one minus the discount in percentage form.

So:

First convert 25% to a decimal, 0.25.

OP(original price) = 21 ÷ 1 - 0.25 =

1 - 0.25 = 0.75

21 ÷ 0.75 = 28.

5 0
3 years ago
Which ordered pair is a solution of the equation y=4x+9
Maru [420]
What are the ordered pairs
3 0
3 years ago
Write the equation in spherical coordinates. (a) x2 y2 z2 = 64
vekshin1

The equation in spherical coordinates will be a constant, as we are describing a spherical shell.

r(φ, θ) = 8 units.

<h3>How to rewrite the equation in spherical coordinates?</h3>

The equation:

x^2 + y^2 + z^2 = R^2

Defines a sphere of radius R.

Then the equation:

x^2 + y^2 + z^2 = 64

Defines a sphere of radius √64 = 8.

Then we will have that the radius is a constant for any given angle, then we can write r, the radius, as a constant function of θ and φ, the equation will be:

r(φ, θ) = 8 units.

If you want to learn more about spheres, you can read:

brainly.com/question/10171109

8 0
2 years ago
15. A band expects to have 16 songs on their next
stepladder [879]

Answer:

There will be 13 songs in the final album.

Step-by-step explanation:

i) number of songs expected = 16 songs

ii) the band wrrites 62.5% more

   therefore the band writes 16 \times ( 1 + 0.625) = 16 \times 1.625 = 26 songs

iii) During the editing process 50% of the songs are removed.

   Therefore there will be in the final album = ( 1 - 0.5) \times 26  = 0.5 \times 26 = 13 songs.

8 0
4 years ago
Other questions:
  • Please answer correctly. Thanks! Will mark brainliest
    7·2 answers
  • What is the function value of f(-5)=x²+8x+10
    7·1 answer
  • Myra swims 3/5 of a mile farther than Luke. If luke swims 2 4/10 miles. How many miles does Myra swim?
    5·1 answer
  • Megan is taking piano lessons and gymnastics lessons. She has piano lessons every 7 days and gymnastics every 3 days. How often
    5·2 answers
  • What is 1+1=<br> I will give brainlist
    15·1 answer
  • True or False: Surface area is the combined area for all of the surfaces of a 3D shape.
    8·1 answer
  • 3 (2 d - 1) -2 D = 4 (d - 2) + 5
    13·1 answer
  • Find two rational numbers such that the sum of the first and three times the second is 5 and the sum of second and two times the
    14·1 answer
  • Marly drove 15 miles to work and then x miles to the store. How many miles did she travel in total?
    5·2 answers
  • This​ week, 951 people went to the beach. Last​ week, 1,173 people went to the beach. The number of people who went to the beach
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!