1. Questions

Math

1. Tell whether the system has one solution infinitely many solutions or no solution.

9x+8y=15
9x+8y=30

a. one solution
b. infinitely many solutions***
c. no solution

2. Tell whether the system has one solution infinitely many solutions or no solution.

5x-3y=10
10x+6y=20

a. one solution***
b. infinitely many solutions
c. no solution

3. Tell whether the system has one solution infinitely many solutions or no solution.

2x-5y=17
6x-15y=51

a. one solution
b. infinitely many solutions
c. no solution***

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Kaai97

  1. #1. two distinct parallel lines, so no solution

    #2, correct

    #3. If you multiply the first by 3, you get the 2nd.
    So the two equations are really one and the same, thus :
    infinite number of solutions.

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    Reiny

  2. If you use the elimination method and add the two equations together, if the variables are eliminated and you have a false statement like 0 = 15 then there is no solution.

    If you have a true statement like 0 =0 then there are many solutions. To check your work, you could also graph the equations.

    Parallel lines will never intersect so there are no solutions.

    Lines that are actually the same and just written differently will be the same line when you graph it. You will have an infinite number of solutions.

    Based on this, I don't agree with your answers.

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    John

  4. Thanks Reiny!
    Thanks John!

    You guys really helped me in this one :)

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    2. 👎
    Kaai97

  5. You u got me an 80 because you wrong don’t post if u wrong

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    Y’all

  6. Don't comment if you're a and to not look at the comments^

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    Tater-tot

  8. rhjnttttttmvszdgd

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    Anonymous

  9. ushgre2yjukw3r56

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    jatytjsm

  10. 1 ;; no solution ( c )

    2 ;; one solution ( a )

    3 ;; infinite solutions ( b )

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    Tohru

  12. thx Tohru, you were right

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    ‍joe mama

  13. I love how "Yall " is blaming us for his inability to do math so when he comes here and gets it wrong, its our fault. Lol what a dope.

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    Post-it

  14. d
    c
    d
    a
    c
    d
    b
    c
    a
    b

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    Anonymous

  16. ^ solving systems using elimination
    @900valll

    1. 👍
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    Anonymous

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