Tarmarra21
Tarmarra21 Tarmarra21
  • 03-03-2017
  • Mathematics
contestada

Solve the system of equations and choose the correct ordered pair. 

9x - 2y = 73
5x - 9y = 9

Solve the system of equations and choose the correct ordered pair 9x 2y 735x 9y 9 class=

Respuesta :

Faaaith1
Faaaith1 Faaaith1
  • 03-03-2017
The answer is A (9,4)
Answer Link
wolf1728
wolf1728 wolf1728
  • 03-03-2017
A) 9x - 2y = 73
B) 5x - 9y = 9
Multiply equation A by -5/9
A) -5x +1.1111111111 y = -40.5555555556  then add it to B
B) 5x - 9y = 9
-7.888888888 y = -31.555555555
y = 4


B) 5x - 9*4 = 9

B) 5x -36 = 9
B) 5x = 45
x = 9

Answer Link

Otras preguntas

The Dust Bowl is a historical example of what? A. water erosion B. wind erosion C. rock weathering D. glacial erosion
Is animism a polytheistic or monotheistic religion?
Belize, Guyana, Jamaica, are ll west indies country
The concentration of a solution can be expressed in (1) kelvins (2) milliliters (3) joules per kilogram (4) moles per liter
what is the fourth most abundant element in the universe in terms of mass?
Chinese cultural revolution leader mao zedong used which type of communication to talk to the masses
Which group 16 element combines with hydrogen to form a compound that has the strongest hydrogen bonding between its molecules? (1) oxygen (3) sulfur (2) seleni
29 Which compounds are classified as Arrhenius acids?(1) HCl and NaOH (2) HNO3 and NaCl (3) NH3 and H2CO3 (4) HBr and H2SO4
One size vinyl record turns at a speed of 33 1/3 revolution per minute. If a song last for 3 1/2 minutes, how many times would the record spin.
An essay on "Welfare of my society depends on my well being"