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
andrew-mc [135]
3 years ago
11

How can I anwers this

Mathematics
1 answer:
nika2105 [10]3 years ago
6 0
Answer: x = 3, y = 6

Solution:

4x - 3y = -6
2x + y = 12
Rearrange the terms

4x - 3y = -6
y = 12 - 2x
Substitute

4x - 3(12 - 2x) = -6
Solve the equation

x = 3
Substitute

y = 12 - 2 x 3
Solve the equation

y = 6
Write the solution

x = 3
y = 6
You might be interested in
PLEASE I NEED HELP QUICKLY!!! Find the solution for the given system of equations in the form (x,y). ​ -x+y=8 7x+3y=-6
natka813 [3]

<u>Answer:</u>

The answer D is correct.

<u>Step-by-step explanation:</u>

-x + y = 8 ⇒ ( 1 )

7x + 3y = - 16 ⇒ ( 2 )

y = 8 + x ⇒ ( 3 )

Let us take equation 2 and let us replace y with (8+x).

Let us solve and find the value of x.

7x + 3y = -16

7x + 3 ( 8 + x ) = - 16

7x + 24 + 3x = -16

10x + 24 = -16

10x = -16 - 24

10x = -40

<h3>x = (-4)</h3>

And now let us find the value of y.

For that, let us use equation (3)

Here, we have to replace x with -4 to find the value of y.

y = 8 + x

y = 8 - 4

<h3>y = 4</h3>

Now we have to the answers in the form ( x , y )

Let us write.

( x , y ) ⇒ ( -4 , 4 )

Let me know if you have any other questions. :-)

7 0
3 years ago
Calculate the standard deviation of the volume of water at a temperature of 25°C.
vaieri [72.5K]

Answer:

0.01

Step-by-step explanation:

Water is non viscous liquid and it has less density. The measure volume of water is 10.03 ml at 25 degree Celsius which is used to identify the standard deviation of the water.

Average volume of water 10.03ml.

Standard deviation is 0.0001 + 0.0001

Standard deviation is \sqrt{0.0002}  = 0.01.

5 0
3 years ago
If a person stands on the scale with one foot and weighs 110lbs what does he weigh with both feet on the scale?
Kisachek [45]
His weight doesn't depend on the area of his contact with the scale.

If it did, then we would see differences in our weight when we wear tennis shoes,
fancy shoes, snow boots, socks, and flip-flops.  What really happens is that any
difference we see is only the difference in the weight of whatever we're wearing on
our feet. It has nothing to do with how much of the scale our feet cover.

It doesn't matter whether you stand on the scale with both feet, one foot, or
on tippy toes, on one finger, or on your head. Your weight reads the same.
3 0
4 years ago
Dayquan decided to run some laps around the track. If the diameter of the track is 75 feet, how far around the track did he run?
SpyIntel [72]

Answer: 235.5 feet

Step-by-step explanation:

In this case, we have to calculate the circumference of the track. The circumference will be calculated as:

= 2πr

Diameter = 75 feet.

Radius = 75/2 = 37.5 feet

Circumference = 2πr = 2 × 3.14 × 37.5 = 235.5feet

5 0
3 years ago
TRUE or FALSE: All exponent expressions can only have 1 base. Why or Why Not?
yan [13]

Answer:

False

Step-by-step explanation: Because every exponent is different

4 0
3 years ago
Other questions:
  • Consider the equation y=4x what is the value of 4x when x=8
    10·2 answers
  • Easy! please help :( The top shelf of a bookcase holds 6 fiction and 4 nonfiction books. On the bottom shelf are 3 fiction and 5
    13·1 answer
  • Each person in a group shuffles a deck of cards and keeps selecting a card until a queen appears. Find the mode of the
    5·1 answer
  • !!!*BRAINLIEST*!!!
    10·2 answers
  • HELP with math plees
    7·2 answers
  • Solve 9x - 5 = 9x - 5. How many solutions does the equation have?<br> Show your work.
    8·1 answer
  • a family buys 6 airline tickets online. the family buys travel insurance that costs 18 per ticket. the total cost is 1,044
    14·1 answer
  • An n-sided polygon rotates 360° about its center, P. The image coincides with its preimage n times during the rotation. What can
    7·1 answer
  • PLEASE HELP!!!!<br><br>Which operation should you perform last in the expression 3^2 + 2?
    14·1 answer
  • 4) Look at this graph:
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!