Mathematics

Mathematics, 02.08.2019 18:00, evazquez

Find the solution of this system of equations x-7y=-20 -3x+9y=36

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Mathematics, 14.07.2019 22:30, cman8228

(05.02) a system of equations is shown below: 5x + 2y = 3 (equation 1) 2x − 3y = 1 (equation 2) 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? (4 points) select one: 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

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Mathematics, 10.09.2019 09:10, ayoismeisalex

Will give brainliest to whoever answers all the questions 1)which ordered pair is the solution to this system of equations? {x+5y=−15y=15x+1 (−8, −1.2) (−7, −0.4) (−5, −2) (−10, −1) 2)what is the solution to this system of equations? {x+y=6x=y+2 (2, 4) (6, 4) (4, 2) (3, 3) 3)what is the solution to this system of equations using the linear combination method? {3x+y=42x+y=7 (−3, 12) (−3, 13) (−1, 7) (0, 4) 4)what is the solution to this system of equations? {−2x+6y=−383x−4y=32 (4, −5) (−4, −5) (−5, 4) (1, −6) 5)what is the solution to this system of equations? 2x+y−z=−35x−2y+2z=243x−z=5 (−1, 0, −8) (4, 1, 8) (2, −6, 1) (−5, 4, −3)

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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 = 84x + y = 2a. −5x + 4y = 89x + 5y = 10b.−5x + 4y = 8−x + 5y = 10c. −5x + 4y = 89x + 5y = 2d.−5x + 4y = 8−x + y = 102. find an equivalent system of equations for the following system: x + 2y = 2−4x + 4y = −8a. x + 2y = 2−4x − 2y = 10b. x + 2y = 25x + 4y = 8c. x + 2y = 25x − 2y = 10d. x + 2y = 25x − 2y = −83.choose a system of equations with the same solution as the following system: 6x + 2y = −63x − 4y = −18a.8x + 4y = −417x + 2y = −28b.12x + 4y = 1221x + 2y = −36c.6x + 8y = −3615x + 6y = −60d.6x + y = 1515x − y = −94.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 = 162x + 4y = 32what action was completed to create this new equivalent system of equations? −2x + 4y = 82x + 4y = 32a.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 = nax + by = csystem 2: (l − a)x + (m − b)y = n − clx + my = na.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 = hqx + ry = sa.5fx + 5gy = 5hqx − ry = sb.5fx + gy = 5hqx + 5ry = sc.5fx + 5gy = 5hqx + ry = sd.fx + 5gy = 5hqx + ry = s8. given the following system of equations: 3x + 5y = 30x + 3y = 10which 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 b2x + y = 5 −10x + 19y = −1−4x + 6y = −2 −4x + 6y = −2which 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.

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Mathematics, 04.11.2019 19:31, jescanarias22

1) what is the solution to the system of equations? -2x + y = -5 3x – 2y = 12 a) (3, 1) b) (6, 3) c) (-2, -9) d) (-2, -1) 2) y = x + 2 2x - y = -4 solve the system of equations using substitution. a) (-2,-4) b) (-2,0) c) (-6,-4) d) (-6,8) 3) x = y + 4 2x - 3y = -2 what is the solution to the system of equations? a) (6, 10) b) (9, 5) c) (10, 6) d) (14, 10) 4) x + 2y = 3 3x - 2y = 5 what is the solution to the system of equations? a) (4, 3.5) b) (2, 1 2 )) c) (2, -1) d) ( 1 2 , 2) 5) use the graph method to solve the system of linear equations: 2x + y = 3 and x + y = 3 a) (-1.5, 0) b) (0, -1.5) c) (0, 3) d) (3, 0) 6) y = − 1 3 x + 2 y = x + 2 what is the solution to the system of equations? a) (0, 2) b) (2, 0) c) (-1, 3) d) (0, -2) 7) x = y - 3 x + 3y = 13 what is the solution to the system of equations? a) (1, 4) b) (4, 1) c) (7, 4) d) (2.5, 5.5) 8) how many solutions can be found for the system of linear equations represented on the graph? a) no solution b) one solution c) two solutions d) infinitely many solutions 9) which graph represents the solution for the equation 1 2 x - 1 = -x + 2? a) a b) b c) c d) d * hover over answer image to enlarge 10) x + 3y = 5 -x + 6y = 4 solve the system of equations. a) x = 1, y = 2 b) x = 2, y = 1 c) x = 1, y = 1 d) x = 0, y = 2 11) find the solution to the system of equations graphed here. a) (-1, -3) b) (1, -3) c) (1, 3) d) (3, 1) 12) how many solutions can be found for the system of linear equations represented on the graph? a) no solution eliminate b) one solution c) two solutions d) infinitely many solutions 13) use the graph method to solve the system of linear equations: y - x = -2 and 2x + y = 7 a) (0,7) b) (2,0) c) (3.5,0) d) (3,1) 14) identify the solution for the system of equations graphed here. a) (1, 1) b) (-1, 1) c) (1, -1) d) (-1, -1)

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