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anonymous

  • one year ago

Given: x + y = 6. If x={-15, -6, -1}, then which of the following sets of ordered pairs are solutions?

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  1. hlambach
    • one year ago
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    Hey, my name is Hannah too! :) Anyways, what options of sets of ordered pairs were given?

  2. anonymous
    • one year ago
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    if 3+3=9 the i believe the answer is B

  3. anonymous
    • one year ago
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    {(-15, -21), (-6, -12), (-1, -7)} {(-15, 21), (-6, 12), (-1, 7)} {(-15, 21), (-6, 12), (-1, -7)} Theses are the answer choices.

  4. welshfella
    • one year ago
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    well hannah all you need do is substitute for the 3 values of x in the equation to find values of y

  5. hlambach
    • one year ago
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    Yeah, what welshfella said...

  6. welshfella
    • one year ago
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    for example put x = -15 into a + y = 6 -15 + y = 6 add 15 to both sides y = 6 +15 = 21 so we know that either b or c are the correct options as a has (-15,-21) so next try x = -6

  7. anonymous
    • one year ago
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    so is it b or c?

  8. welshfella
    • one year ago
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    yes - to find out which try plugging in the next value of x which is -6 and see what you get

  9. welshfella
    • one year ago
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    all you have to do is replace the x in x + y = 6 with -6 and work out what y is

  10. anonymous
    • one year ago
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    uhm... is still don't understand, but ok.

  11. welshfella
    • one year ago
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    -1 + y = 6 now solve for y

  12. anonymous
    • one year ago
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    y=7

  13. welshfella
    • one year ago
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    yeah = thats the third value - butthats ok now you should be able to choose the correct option b or c?

  14. welshfella
    • one year ago
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    find the one containing ( -1,7)

  15. anonymous
    • one year ago
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    Butthats? whats that even mean... and b

  16. welshfella
    • one year ago
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    lol but that's

  17. welshfella
    • one year ago
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    yes b is correct

  18. welshfella
    • one year ago
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    c has (-1,-7) which does not fit the calculations

  19. welshfella
    • one year ago
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    do you understand what we;ve done and why?

  20. anonymous
    • one year ago
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    yes...

  21. welshfella
    • one year ago
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    good

  22. anonymous
    • one year ago
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    fantastic

  23. anonymous
    • one year ago
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    i like your automobile

  24. anonymous
    • one year ago
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    well bye featheres thanks for helping me!!!

  25. anonymous
    • one year ago
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    b*tches

  26. anonymous
    • one year ago
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    its b

  27. anonymous
    • one year ago
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    thanks!!

  28. anonymous
    • one year ago
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    CHECK UR MESSAGES HO

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