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
hoa [83]
3 years ago
10

Answers to these systems of two equations 4x+2y=10 x-y=13

Mathematics
2 answers:
chubhunter [2.5K]3 years ago
7 0
4x+2y=10

Plug in y+13 where x is on the other system.

So 4x+2y=10 would be 4(y+13)+2y=10

4(y+13)+2y=10
4y+ 52+2y=10
6y=-42 (Result of adding 4y and 2y, and subtracting 52 on both sides)
y=-7 (Result of dividing both sides by 6, finding what y equals!)

That's the first step. Right now our answer looks like this: (x, -7). We need to find what x is equal to. If we know what y is equal to we can just plug that in wherever y is. From here you can choose either of the equations. We'll go with the easier one, 4x+2y=10.

4x+2y=10
4x+2(-7)=10 (As a result of plugging in -7 for y)
4x+(-14)=10 (The equation above simplified)
4x=24 (Result of adding 14 to each side)
x=6 (Result of dividing each side by 4, finding our final answer!)

Now that we know what x and y are equal to, you now have the answer. 

The answer to the system is (6, -7)


Georgia [21]3 years ago
6 0
4x+2y=10 \\
x-y=13 \ \ \ |\times 2 \\ \\
4x+2y=10 \\
\underline{2x-2y=26} \\
4x+2x=10+26 \\
6x=36 \ \ \ |\div 6 \\
x=6 \\ \\
x-y=13 \\
6-y=13 \ \ \ |-6 \\
-y=7 \ \ \ |\times (-1) \\
y=-7 \\ \\
\boxed{(x,y)=(6,-7)}
You might be interested in
Steven has $10. Each week he earns $2.
podryga [215]

Answer:

(a) 2*10 = 20

10+20=30

(b) ceil((25-10)/2) = 8

8 0
2 years ago
Read 2 more answers
How many different ways can you color the Olympic rings​
weqwewe [10]

Answer:

5

Step-by-step explanation:

The rings are five interlocking rings, coloured blue, yellow, black, green and red on a white field, known as the "Olympic rings". The symbol was originally created in 1913 by Coubertin.

4 0
3 years ago
Please help me!!!!!!!!!!
kirill [66]
I think the  answer may be D. You can graph the points and draw  a line through the points to see what other points are intersected by the line. 
5 0
3 years ago
Evaluate the trigonometric funtion of the angle theta​
jeka57 [31]
The last side would be 10
8 0
2 years ago
Pls help me solve this one please..<br> (3/4)to the 2nd power +(1/2)to the second power
andriy [413]
9/16 + 1/4
9+4/16
13/16

Alternative form
0.8125
5 0
2 years ago
Other questions:
  • If the sum of the measures of the interior angles of a convex polygon is 2160°, how many sides does the polygon have?
    14·1 answer
  • Please help! : What is the actual length of a window that is 1 1/4 inches long on a drawing with a scale of 1 inch= 6 feet? This
    13·1 answer
  • What statement describes the relationship between ∆ XYZ and ∆ X'Y'Z'?
    8·1 answer
  • Liam walks 2 kilometers every day. How far does Liam walk in 7 days?
    13·2 answers
  • The members of a spirit club are buying felt to make
    15·1 answer
  • Can you answer 6 and 7?
    9·2 answers
  • What type of relationship does this pair of angles have? A.They are complementary angles.
    13·1 answer
  • Check
    15·1 answer
  • From a circular sheet of a radius 5 cm, a circle of radius 3 cm is removed. Find the area of the remaining sheet.
    10·1 answer
  • Emily has been considering the purchase of a used car that costs $11.656. How much money does she need to make in order to comfo
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!