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
Murrr4er [49]
3 years ago
13

To solve this system of equations by elimination, what operation could be used to eliminate the y-variable and find the value of

x? 6x + 5y = 2 4x + 2y = 8
Mathematics
2 answers:
Svetach [21]3 years ago
6 0

Answer:

Multiply each equation by the coefficient of y in the other one.  

Step-by-step explanation:

(1)  6x + 5y = 2

(2) 4x + 2y = 8

Multiply each equation by the coefficient of y in the other one.

Multiply (1) by 2 and (2) by 5.

(3)   12x + 10y =   4

(4) 20 x + 10y = 40     Subtract (3) from (2)

                8x = 36      Solve for x

                  x = 9/2

ozzi3 years ago
3 0

Answer:

Subtract 5 times the first equation from 2 times the second equation

Step-by-step explanation:

2(6x + 5y = 2)

5(4x + 2y = 8)

12x + 10y = 4

20x + 10y = 40

Subtracting the second equation from first gives:

−8x = −36

x =  

−36

−8

x =  

9

2


You might be interested in
Who is faster The Flash or Quicksilver?<br><br><br><br> I want a source to back up your answer
nikdorinn [45]

Answer:

The flash.

Step-by-step explanation:

He used to max out at Mach 1. Since crossover events are exceedingly rare, it is safe to assume that if you were comparing their speeds, the Flash is <u><em>consistently</em></u> faster than Quicksilver, though operationally speaking both could be consider comparable since their feats tend to be done at the same overall speed.

3 0
3 years ago
Read 2 more answers
A Web music store offers two versions of a popular song. The size of the standard version is 2.4 megabytes (MB). The size of the
Margarita [4]

Answer:

880 high-quality version

Step-by-step explanation:

I think the below is your full question:

<em>A Web music store offers two versions of a popular song. The size of the standard version is 2.1megabytes (MB). The size of the high-quality version is 4.5 MB. Yesterday, there were 1290 downloads of the song, for a total download size of 4821 MB. How many downloads of the high-quality version were there?</em>

Here is my answer:

Let x is the number of high-quality version

So the number of standard version= 1290 - x

We also know:  total download size of 4821 MB. which means:

4.5x + 2.1(1290-x) = 4821

<=> 4.5x+2709-2.1x=4821

<=> 2.4x=2112

<=> x=880

So there were 880 high-quality version

5 0
3 years ago
Read 2 more answers
4 fractions equivalent to 2/3
Shkiper50 [21]

Answer:

4/6 6/9 8/12 10/15

Step-by-step explanation: Split them into smaller fractions


5 0
3 years ago
Solve for L: d=LM/R2+R1
Bogdan [553]
D=LM/(R2+R1)
d(R2+R1)<span>=LM
[</span>d<span>(R2+R1)</span>]/M=L
7 0
3 years ago
Read 2 more answers
Can u plzz find me a length of adjacent​
timofeeve [1]

Answer:

There is no answer

My Logic:

The picture does not specify the degree of angle for each corner, nor can i understand what the random "a" is. also the side all the way to the left has an un-readable number.

6 0
2 years ago
Other questions:
  • The grid shown below is in the shape of a rectangle. What is the area, in square units, of the shaded part of the rectangle? a 1
    5·1 answer
  • Consider the quadratic function LaTeX: f\left(x\right)=8x^2-7x+6f ( x ) = 8 x 2 − 7 x + 6. What is the constant of the function?
    6·2 answers
  • Plz help!!!!!<br><br> Please!
    13·1 answer
  • X+2y = 5<br> 3х +6y = 15<br><br> Use the substitution method
    13·1 answer
  • What does the fraction 5/6 mean and how can it be written using division?
    10·2 answers
  • $100000 for 3 years at 9% compounded annually
    7·1 answer
  • Help pls------- ☝︎︎
    13·2 answers
  • Anyone know the answer to this?
    10·1 answer
  • 2/7 +2/5 find the sum and difrence
    12·1 answer
  • Given f(x) = (x − 1)(x + 2)(x − 3), what are the zeros and end behavior of the function? −1, 2, −3; continues downward to the le
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!