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

what is it called when a line of poetry continues on to another line both in sense and in grammar?
Which is the correct scientific notation for 724,000,000,000?
why do you subtract exponents when dividing powers with the same base
solve for z. z−9=27 3 16 18 36
Write a number that is greater than 4.508 but less than 4.512
Which of the following is the correctly abbreviated SI unit describing the amount of a substance? mol g kg M
how to solve 245 - 137
the person who did not release the report to the jewish people was named
Cheyenne is playing a board game. Her score was -275 at the start of her turn, and at the end of her turn her score was -425. What was the change in Cheyenne's
help please..........don't get it