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
Ksju [112]
3 years ago
13

Choose a method you prefer to solve for a system of linear equations. 2x + 4y = -4 2x-y=6

Mathematics
1 answer:
Artyom0805 [142]3 years ago
7 0

Answer:

Elimination

x = 2

y = -2

Step-by-step explanation:

Elimination

2x + 4y = -4

2x - y = 6

Subtract the second equation from the first

5y = -10

Divide both sides by 5

y = -2

---------------------

Substitute for y = -2 in the second equation

2x - -2 = 6

2x + 2 = 6

subtract 2 from both sides

2x = 4

Divide both sides by 2

x = 2

You might be interested in
Number line question PLEASE HELP
AleksandrR [38]
The answer is
A) 3 1/4 feet
3 0
3 years ago
HEY CAN ANYONE PLS ANSWER DIS MATH QUESTION!!!!!!!!
ziro4ka [17]

Answer:

  • 80 tons
  • $20,000

Step-by-step explanation:

<u>21. 1st scenario</u>

  • B = fy + wz
  • 100,000 = 15,000*4 + 500w
  • 500w = 100,000 - 60,000
  • 500w = 40,000
  • w = 40,000/500
  • w = 80

80 tons of wheat

<u>22. 2nd scenario</u>

  • B = fy + wz
  • 50,000 = 2y + 200*50
  • 50,000 = 2y + 10,000
  • 2y = 50,000 - 10,000
  • 2y = 40,000
  • y = 20,000

Fighter plane's price is $20,000

8 0
3 years ago
Which expression is a difference of squares with a factor of 2x + 5? 4x2 + 10 4x2 – 10 4x2 + 25 4x2 – 25
Shtirlitz [24]

Answer:

  4x^2 -25

Step-by-step explanation:

The other factor of the difference of squares is the "conjugate" of the given one: (2x -5). Then their product is ...

  (2x +5)(2x -5) = (2x)^2 -(5)^2 = 4x^2 -25

5 0
3 years ago
Read 2 more answers
Use the quadratic formula to solve for x.
lakkis [162]
0.64,-3.14 I’m not really sure about the -3.14. (Sorry).
4 0
2 years ago
Read 2 more answers
In △ABC,m∠B=3⋅m∠C and m∠A=2⋅m∠C. What is m∠A?
german
90
The correct Answer is B

5 0
3 years ago
Read 2 more answers
Other questions:
  • When Tiffany decided to stop eating junk food she started saving more of her allowance to buy a larger bicycle she managed to pu
    9·2 answers
  • What equation is graphed in this figure? y+2=−32(x−2) y−3=32(x+1) y+1=−23(x−3) y−4=−23(x+2) Number graph that ranges from negati
    10·1 answer
  • Consider the statemen P. P.X=5 which of the following is an equivalent statement
    9·1 answer
  • Determine if line AB is tangent to the circle. If so, then explain why.
    14·1 answer
  • Starting with 2 marked points, A and B, precisely describe the straightedge and compass moves required to construct the triangle
    6·1 answer
  • Help me ASAP for this question
    5·1 answer
  • How do i get 51 with the numbers 5, 6, 7, 8? Must use all of the numbers and only can use addition, subtraction, multiplication,
    5·1 answer
  • a football team won 80% of the 150 games in a season. Wright the percent proportion that will help you solve the problem in that
    13·1 answer
  • Estimate 7956 - 5853 by first rounding each number to the nearest hundred.
    14·1 answer
  • Convert the following to sq. cm or to sq. m, as required.<br> 920 000 sq. cm= ______ sq. m​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!