Seudónimo Seudónimo
  • 11-02-2014
  • Mathematics
contestada

Use elimination to solve this system of equations. 2r + 3s= 9 and 3r + 2s= 12

Respuesta :

crisforp
crisforp crisforp
  • 11-02-2014
2r + 3s= 9 <=> -6r -9s = -27;
3r + 2s= 12 <=> 6r + 4s = 24;
                    => 0*r -5*s = -3 => s = 3/5;

2*r + 3*(3/5) = 9<=> 10*r + 9 = 45 <=> 10*r = 36 => r = 18/5;

Answer Link
chloeholmes chloeholmes
  • 02-02-2020

Answer:

(18/5,3/5)

Step-by-step explanation:

Answer Link

Otras preguntas

If 1/2 hour Naomi stretches her neck; every 1/3 hour she stretches her legs; and every 1/6 hour she stretches her ams. Which parts of her body will Naomi stretc
a family pays 45 dollars each month for cable television.the cost increase 7 percent.how many dollars is the increase?
It takes April 7 1/3 hours to drive to her grandparents’ house. So far she has driven 3 5/6 hours. How many more hours does April need to drive?
Which of the following is a current kingdom? Animalia Monera Protista all of the above
Which statement best describes the tones of "To My Dear Loving Husband" and "To the King's Most Excellent Majesty"? A.)Bradstreet's poem has a thoughtful tone,
What changes to landforms are caused by movements at transform boundaries?
What is colon cancer? And what causes it?
What is the name of a polygon that adds up to 720 degrees
Progressives wanted to take the power of choosing candidates away from political machines. One way they saw to accomplish this was to
How can I distinguish between the three stages of Interphase (G1, S, and G2)?