LifeIsADangerousGame
  • LifeIsADangerousGame
How do I find how many solutions are there to the following system of equations? 2x – y = 2 –x + 5y = 3
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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LifeIsADangerousGame
  • LifeIsADangerousGame
What I've done so far: 5(2x – y = 2) ----> 10x - 5y = 10 (–x + 5y = 3) ---> -x + 5y = 3 Cross out the 5y's.... 10x = 10 -x = 3 then I add so 9x/9 = 13/9
ajprincess
  • ajprincess
so x=13/9 apply this value in ur first eqn and find the value of y.
LifeIsADangerousGame
  • LifeIsADangerousGame
ohhh let me do it out one second please :P

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ajprincess
  • ajprincess
oh k. I will wait.
LifeIsADangerousGame
  • LifeIsADangerousGame
Ah. idk how to do it :/
ajprincess
  • ajprincess
2x-y=2 2*13/9-y=2 nw can u do?
LifeIsADangerousGame
  • LifeIsADangerousGame
OH that's what I did wrong! I made it "y" and not x!
ajprincess
  • ajprincess
sorry. i didn't get u
LifeIsADangerousGame
  • LifeIsADangerousGame
No you're good :P I got y = 8.9 is that correct
ajprincess
  • ajprincess
it has to b 0.89
LifeIsADangerousGame
  • LifeIsADangerousGame
sorry, moved the decimal :P
LifeIsADangerousGame
  • LifeIsADangerousGame
So A. 0 B. 1 C. 2 D. infinitely many
LifeIsADangerousGame
  • LifeIsADangerousGame
Those are teh answers I can choose....how can I find which one it is?
ajprincess
  • ajprincess
only 1 solution
LifeIsADangerousGame
  • LifeIsADangerousGame
Could you explain to me why?
ajprincess
  • ajprincess
R u familiar with graphs?
LifeIsADangerousGame
  • LifeIsADangerousGame
Yes, and I thnik I found it in my book :P Thanks though
LifeIsADangerousGame
  • LifeIsADangerousGame
I hate graphs :P
LifeIsADangerousGame
  • LifeIsADangerousGame
Ooh I get it! Thanks so much :D
ajprincess
  • ajprincess
sure u got it. if nt I will explain. no problem
LifeIsADangerousGame
  • LifeIsADangerousGame
Nope, I think I'm good :) Would you mind helping me with the rest?
ajprincess
  • ajprincess
ha k. sure post them.
LifeIsADangerousGame
  • LifeIsADangerousGame
Thanks!
LifeIsADangerousGame
  • LifeIsADangerousGame
Write a system of equations to solve the following problem. Let c be the number of child tickets and a be the number of adult tickets. Each child ticket for a ride costs $3, while each adult ticket costs $5. If the ride collected a total of $115, and 33 tickets were sold, how many of each type of ticket were sold? My answer: 3c + 5a = 115 a + c = 33
ajprincess
  • ajprincess
u r right.
LifeIsADangerousGame
  • LifeIsADangerousGame
Thanks! I appreciate you helping me :)
ajprincess
  • ajprincess
u r welcome. :)

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