Pl i need it
i'll give you brainlist : (
1. create an equivalent system of eq...
Mathematics, 27.10.2019 01:43 maehardy4134
Pl i need it
i'll give you brainlist : (
1. create an equivalent system of equations using the sum of the system and the first equation.
−5x + 4y = 8
4x + y = 2
a. −5x + 4y = 8
9x + 5y = 10
b.−5x + 4y = 8
−x + 5y = 10
c. −5x + 4y = 8
9x + 5y = 2
d.−5x + 4y = 8
−x + y = 10
2. find an equivalent system of equations for the following system:
x + 2y = 2
−4x + 4y = −8
a. x + 2y = 2
−4x − 2y = 10
b. x + 2y = 2
5x + 4y = 8
c. x + 2y = 2
5x − 2y = 10
d. x + 2y = 2
5x − 2y = −8
3.
choose a system of equations with the same solution as the following system:
6x + 2y = −6
3x − 4y = −18
a.8x + 4y = −4
17x + 2y = −28
b.12x + 4y = 12
21x + 2y = −36
c.6x + 8y = −36
15x + 6y = −60
d.6x + y = 15
15x − y = −9
4.a system of equations is shown:
5x + 2y = 3 (equation 1)
2x − 3y = 1 (equation 2)
4.a student wants to prove that if equation 2 is kept unchanged and equation 1 is replaced with the sum of equation 1 and a multiple of equation 2, the solution to the new system of equations is the same as the solution to the original system of equations. if equation 2 is multiplied by 1, which of the following steps should the student use for the proof?
a. show that the solution to the system of equations 7x − y = 4 and 2x − 3y = 1 is the same as the solution to the given system of equations.
b. show that the solution to the system of equations 2x + 5y = 3 and 3x − 2y = 1 is the same as the solution to the given system of equations.
c. show that the solution to the system of equations 9x + 4y = 5 and 7x − y = 4 is the same as the solution to the given system of equations.
d. show that the solution to the system of equations −4x + 9y = 5 and 2x − 3y = 1 is the same as the solution to the given system of equations.
5.given the following system of equations:
−4x + 8y = 16
2x + 4y = 32
what action was completed to create this new equivalent system of equations?
−2x + 4y = 8
2x + 4y = 32
a. divide the second equation, 2x + 4y = 32, by 2.
b. divide the first equation, −4x + 8y = 16, by 2.
c. multiply the second equation, 2x + 4y = 32, by −1.
d. multiply the first equation, −4x + 8y = 16, by −1.
6.explain how system 1 becomes equivalent to system 2.
system 1:
lx + my = n
ax + by = c
system 2:
(l − a)x + (m − b)y = n − c
lx + my = n
a. the first equation in system 2 is the sum of the equations in system 1. the second equation in system 2 is the first equation in system 1.
b. the first equation in system 1 is the difference of the equations in system 2. the second equation in system 1 is the first equation in system 2.
c. the first equation in system 2 is the difference of the equations in system 1. the second equation in system 2 is the first equation in system 1.
d. the first equation in system 1 is the sum of the equations in system 2. the second equation in system 1 is the first equation in system 2.
7.
choose an equivalent system of equations to the following system:
fx + gy = h
qx + ry = s
a.5fx + 5gy = 5h
qx − ry = s
b.5fx + gy = 5h
qx + 5ry = s
c.5fx + 5gy = 5h
qx + ry = s
d. fx + 5gy = 5h
qx + ry = s
8. given the following system of equations:
3x + 5y = 30
x + 3y = 10
which action creates an equivalent system that will eliminate one variable when they are combined?
a. multiply the second equation by −1 to get −x − 3y = −10.
b. multiply the second equation by −3 to get −3x − 9y = −30.
c. multiply the first equation by −1 to get −3x − 5y = −30.
d. multiply the first equation by −3 to get −9x − 15y = −90.
9. two systems of equations are shown:
system a system b
2x + y = 5 −10x + 19y = −1
−4x + 6y = −2 −4x + 6y = −2
which of the following statements is correct about the two systems of equations?
a. they will have the same solutions because the first equation of system b is obtained by adding the first equation of system a to 2 times the second equation of system a.
b. they will have the same solution because the first equation of system b is obtained by adding the first equation of system a to 3 times the second equation of system a.
c. the value of x for system b will be −5 times the value of x for system a because the coefficient of x in the first equation of system b is −5 times the coefficient of x in the first equation of system a.
d. the value of x for system a will be equal to the value of y for system b because the first equation of system b is obtained by adding −12 to the first equation of system a and the second equations are identical.
Answers: 2
Mathematics, 21.06.2019 17:40
Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression
Answers: 2
Mathematics, 21.06.2019 19:30
[15 points]find the quotient with the restrictions. (x^2 - 2x - 3) (x^2 + 4x + 3) ÷ (x^2 + 2x - 8) (x^2 + 6x + 8)
Answers: 1
Mathematics, 21.06.2019 23:00
Ineed to know the ordered pairs for this equation i need the answer quick because it’s a timed test
Answers: 1
Mathematics, 22.06.2019 00:20
G. how many different 6-letter arrangements can be formed using the letters in the word absent, if each letter is used only once? a. 6 b. 36 c. 720 d. 46,656
Answers: 1
Mathematics, 02.10.2020 15:01
Mathematics, 02.10.2020 15:01
Social Studies, 02.10.2020 15:01
Spanish, 02.10.2020 15:01
Mathematics, 02.10.2020 15:01
Mathematics, 02.10.2020 15:01
Mathematics, 02.10.2020 15:01
Biology, 02.10.2020 15:01
History, 02.10.2020 15:01
English, 02.10.2020 15:01
Mathematics, 02.10.2020 15:01
History, 02.10.2020 15:01
Mathematics, 02.10.2020 15:01