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
Mnenie [13.5K]
3 years ago
5

Solve the system. 4x+y=2 x-y=3

Mathematics
2 answers:
Anettt [7]3 years ago
6 0

Answer:

<h2>x = 1, y = -2 → (1, -2)</h2>

Step-by-step explanation:

\underline{+\left\{\begin{array}{ccc}4x+y=2\\x-y=3\end{array}\right}\qquad\text{add both sides of the equations}\\.\qquad5x=5\qquad\text{divide both sides by 5}\\.\qquad\boxed{x=1}\\\\\\\text{Put the value of}\ x\ \text{to the first equation:}\\\\4(1)+y=2\\4+y=2\qquad\text{subtract 4 from both sides}\\4-4+y=2-4\\\boxed{y=-2}

torisob [31]3 years ago
3 0

Answer:

do i solve by substitution or addition/elimination?  my answer will be in the comments after you've replied

Step-by-step explanation:

You might be interested in
A typical lap around a track in the United States has length of 440 yards. How many lap would need to be complete to run a mile?
g100num [7]

4 laps because a mile is 1,760 yards and the 440 laps need to be divided into 1,760 so 1,760/440 is 4 so four laps are needed to complete a mile

3 0
3 years ago
HELP!!! WILL MARK AS BRAINLIEST!!
harina [27]
9/20

explanation:

7/10 - 1/4
14/20 - 5/20
14-5/20
9/20
3 0
3 years ago
Read 2 more answers
Elimination using addition and subtraction. <br> -4x+4y=-20<br> -2x+4y=-2
goldfiish [28.3K]

I would subtract the 2nd from the first one

so -4x - -2x = -2x

4y - 4y = 0

-20 - -2 = -18


-2x = -18

now I would divide that by -2 to get the value for x

so no we have x = 9


now you just have to substitute that into one of the equations and simplify to get y


-2 X 9 + 4y = -2

-18 + 4y = -2

4y =16

y = 4



3 0
4 years ago
Read 2 more answers
If 5 is subtracted from the square of a number ,the result is 4 , find the number.
Levart [38]

Answer:

9 I think

Step-by-step explanation:

I added 5 plus 4 to get 9 but I'm really not sure but I hope i helped!

7 0
3 years ago
An 8 oz glass of grape juice contains 0.6 mg of iron. About what percent of RDA of iron for an 15 year old male is provided by 8
babymother [125]

Answer:

5.45%


Step-by-step explanation:

To find info of a 15 year old male, you look at the Age Group of 14 - 18, beside Male.

The RDA of Iron is given as 11 mg

From a 8 oz glass of grape juice, he gets 0.6 mg.


<em>What percent is 0.6 mg of total 11 mg??</em>


Divide 0.6 by 11 and then multiply by 100 to get the answer. So we have:

\frac{0.6}{11}=0.0545*100=5.45

Thus, 5.45% of RDA of iron is provided by an 8 oz glass of grape juice.

6 0
4 years ago
Other questions:
  • Santana is plotting points on a graph. The ratio of y-value to x-value is 3 to 4 for each point. What will be the x-value of a p
    7·2 answers
  • I'm not sure of my answer I know that you have to multiply diagonally then add or subtract I'm not sure.
    9·1 answer
  • (a) Use the fundamental theorem of algebra to determine the number of roots for 2x^2+4x+7 show your work
    9·1 answer
  • Graph the function f(x) = (x + 1)(x - 5). Use the drop-
    10·1 answer
  • In fifteen minutes, greg's sailboat went 3/6 mile, gina's sailboat went 6/6 mile, and Stuart's sailboat went 4/6 mile. Whose sai
    14·2 answers
  • two terms of an arithmetic sequence are a6= 40 and a20= -16. write and explicit rule for the nth term
    14·1 answer
  • Carlton bought stock at $5.25 for each share. The price of the stock decreased $3.75 after one month. It then increased $1.85 an
    7·2 answers
  • What is the length of the hypotenuse of the following triangle to the nearest whole number?
    9·1 answer
  • Use the digits 1,2,3,4,5 and the following clues to find the 5-digit number.
    14·2 answers
  • Why might andrew have stopped 3 times for 1 minute?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!