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Steeben

  • 2 years ago

How many solutions are there to the following system of equations? 5x + 3y = 7 2x – y = 2

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  1. Steeben
    • 2 years ago
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    in the end, I solved for y and then y = 2x-2, then I plugged it in the other one and x turns out to be equal to 0.18181818818818188 AND I'M LIKE WHATTTT

  2. BriannaD
    • 2 years ago
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    combine the like turms

  3. Steeben
    • 2 years ago
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    okay I already did that... read what I did before

  4. Austin_Rain
    • 2 years ago
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    LOL, No. You don't solve them. Plot them on a graph.

  5. BriannaD
    • 2 years ago
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    what u ahev to plot them?

  6. mud116
    • 2 years ago
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    yuppers both are correct once you combine like terms that is as far as you go

  7. BriannaD
    • 2 years ago
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    1, Discriminant = 49 - (4*5*3) = -11 2, nemaproblema: x² - 7/5x = -3/5 (x - 7/10)² - 0.49 = -0.6 (x - 7/10)² = -0.11 Both indicates there is no solution.

  8. Steeben
    • 2 years ago
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    cause the main question is How many solutions are there to the following system of equations? a. 0 b. 1 c. 2 d. infinately many

  9. mud116
    • 2 years ago
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    can I give two pple medals?

  10. BriannaD
    • 2 years ago
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    A there r no solutions!

  11. BriannaD
    • 2 years ago
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    no just one :(

  12. Austin_Rain
    • 2 years ago
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    Put the system into slope intercept form. and plot it on the graph. You can see how many solutions there are from how many times they intercept.

  13. BriannaD
    • 2 years ago
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    I gave u the answer there are no solutions!!!!!!!!!!

  14. Steeben
    • 2 years ago
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    brianna I know where you got that answer but it's not. I looked it up too but they don't have the same question.

  15. mud116
    • 2 years ago
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    this is true you got an infinite number which usually means that there is no true answer!

  16. Steeben
    • 2 years ago
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    alright imma graph it

  17. mud116
    • 2 years ago
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    yes that will give you an ACCURATE answer

  18. Steeben
    • 2 years ago
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    http://answers.yahoo.com/question/index?qid=20100115131935AAGxXYR this is not it

  19. BriannaD
    • 2 years ago
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    ok its indefanitly many!

  20. Austin_Rain
    • 2 years ago
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    There is only 1 solution. Meaning the two lines only intercept once.

  21. BriannaD
    • 2 years ago
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    but when u graph they can only intercept one or non times!

  22. Steeben
    • 2 years ago
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    yes they intercept once.

  23. Austin_Rain
    • 2 years ago
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    False, they can intercept infinite, zero, or one time.

  24. Austin_Rain
    • 2 years ago
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    Infinite = Same Line Zero = Parallel Lines One = Criss Cross Lines.

  25. Austin_Rain
    • 2 years ago
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    Stee, I am giving you a picture of the graph to help you. :)

  26. Austin_Rain
    • 2 years ago
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    Here you go!

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  27. Steeben
    • 2 years ago
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    ahhh I see thanks!!!

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