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
katovenus [111]
3 years ago
7

1

Mathematics
1 answer:
Yanka [14]3 years ago
7 0

The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"

<h3>System of equation</h3>

System of equation are made of two or more equations with unknowns

Given the system of equation

4x=5-2y

y-2x=7

From equation 2:

y = 7 + 2x

The expression y = 7 + 2x can be substituted into the first equation to find the variable "x"

Learn more on system of equation here: brainly.com/question/14323743

#SPJ1

You might be interested in
What is the product of 180 and <br><br> 5.7×10^2<br><br> expressed in scientific notation?
DerKrebs [107]

The product of 180 and 5.7 x 10^2 is 1.026 x 10^5 (in scientific notation)

hope this helps!

6 0
3 years ago
How is the vertex related to the maximum or minimum of a parabola?
USPshnik [31]

Answer:

Vertical parabolas give an important piece of information: When the parabola opens up, the vertex is the lowest point on the graph — called the minimum, or min. When the parabola opens down, the vertex is the highest point on the graph — called the maximum, or max.

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Which is the best estimate for the mass of a mouse?
Simora [160]
A. 

Mice are small and kilograms are for much larger objects. The other two measurements are for liquids. 
7 0
4 years ago
Read 2 more answers
Solve the following system of equations using matrices​ (row operations).
Stells [14]

Answer:

(6,3,0)

Step-by-step explanation:

Given,

x -  y + 0z  =  3

6x -  0y - 2z = 36

0x + 6y + 2z = 18

You have the following augmented matrix:

(1) 1     -1     0      3

(2) 6    0   -2      36

(3) 0    6    2       18

Let's (3) add to (2) and divide by 6

(1)  1    -1    0       3

(2) 1     1    0       9

(3) 0    6   2       18

Now, let's (2) add  to (1) and divide by 2

(1)  1   0    0     6

(2) 1    1    0     9

(3) 0   6   2     18

Let's (3) ÷ 2

(1)  1    0   0     6

(2) 1    1   0      9

(3) 0   3   1      9  

Let's (1) subtract from (2)

(1)  1   0   0     6

(2) 0   1   0     3

(3) 0   3   1     9

Finally, let's (2) multiply by 3 and subtract from (3)

(1)  1   0   0     6

(2) 0   1   0     3

(3) 0   0   1     0

Thus,

x = 6, y = 3 and z = 0

The answer is (6, 3, 0)

We have to verify the answer

6 - 3 = 3  ⇒⇒ 3 = 3

6*6 - 5*0 = 36   ⇒⇒ 36 = 36

6*3 + 2*0 = 18    ⇒⇒ 18 = 18  

6 0
3 years ago
If a phone charges 3% every five minutes then how long will it take for the phone to charge 100%
postnew [5]

To find out how long it will take a phone to charge 100% if it charges 3% every 5 minutes, you have to put it in a fraction.

3/5

3 is the percent charged and 5 is the time.

You have to find out what 100 divided by 3 is. The answer is 33.3.

So,

3/5 times 33.3 is equal to 99.9/166.5.

It will take 166.5 minutes for the phone to charge to about 100%.

hope it helps.

can you choose mine as the brainliest answer

4 0
4 years ago
Read 2 more answers
Other questions:
  • Answer as a power of 6
    6·1 answer
  • The grocery store sells dates for $4.00 a pound and pomegranates for $2.75 a pound. choose an equation in standard form for the
    12·1 answer
  • Find the surface area of the right rectangular prism with length 14 meters, width 7 meters, and height 28 meters.
    6·1 answer
  • I need help for question 12 plz
    10·1 answer
  • Which number is irrational?? Help..!
    9·1 answer
  • A container is 8/9 kg of berries is 2/3 full, how many kg can the container hold
    11·1 answer
  • Plz i want the answer
    14·1 answer
  • Hey guys marking brainliest <br><br> What should I add in the background
    6·2 answers
  • What is the surface area for the figure, in square centimeters?
    15·1 answer
  • 9. The expression -8x? – 56x written in fully factored form is
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!