subject
Mathematics, 12.12.2020 16:40 momof7hardings

Which system of equations is equivalent to the following system? 4x + y = 4
2x + 7y = 28

A: 4x + y = 4
−2x − 7y = 28

B: 4x + y = 4
−8x − 28y = 112

C: −28x − 7y = −28
2x + 7y = 28

D: −8x − 2y = 8
2x + 7y = 28

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 15:30
Amerchant has coffee worth $60 a pound that she wishes to mix with 50 pounds of coffee worth $90 a pound to get a mixture that she will sell for $70 a pound. how many pounds of the & 60 coffee should be used?
Answers: 3
question
Mathematics, 21.06.2019 17:30
F(x)= 4x g(x) =x-1 what is f(x) divided by g(x)
Answers: 2
question
Mathematics, 21.06.2019 18:30
10% of 1,900,000. show me how you got the answer
Answers: 2
question
Mathematics, 21.06.2019 19:00
What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2
Answers: 1
You know the right answer?
Which system of equations is equivalent to the following system? 4x + y = 4
2x + 7y = 28
Questions
question
Mathematics, 17.12.2020 01:00
question
Arts, 17.12.2020 01:00
question
Mathematics, 17.12.2020 01:00
question
English, 17.12.2020 01:00
question
Mathematics, 17.12.2020 01:00
Questions on the website: 13722359