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Annetta_Martin

With a tail wind, a plane traveled 800 mi in 5 hours. With a head wind, the plane traveled the same distance in 8 hours. Which system of equations could be used to solve this problem? (s + w)5 = 800 and (s - w)8 = 800 (s - w)5 = 800 and (s + w )8 = 800 5s + 8w = 800 and 5s - 8w = 800

  • 11 months ago
  • 11 months ago

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  1. Peter14
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    which one do you think it is?

    • 11 months ago
  2. Annetta_Martin
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    The first one, I'm sure!

    • 11 months ago
  3. Annetta_Martin
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    Please tell me I'm right haha

    • 11 months ago
  4. Peter14
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    you are right :)

    • 11 months ago
  5. Peter14
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    any other problems?

    • 11 months ago
  6. Annetta_Martin
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    Yes I just have two more questions to finish my online study guide....

    • 11 months ago
  7. Annetta_Martin
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    • 11 months ago
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  8. Annetta_Martin
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    @bahrom7893 @ganeshie8 @mathstudent55 @AriPotta

    • 11 months ago
  9. ganeshie8
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    for the first 1, whats the coordinate where the blue and green lines intersect ?

    • 11 months ago
  10. Annetta_Martin
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    2, -1

    • 11 months ago
  11. ganeshie8
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    thats right !

    • 11 months ago
  12. Annetta_Martin
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    Yay! Ok :)

    • 11 months ago
  13. ganeshie8
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    second q : do u knw how coordinates of points of line y=x look like ?

    • 11 months ago
  14. ganeshie8
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    (0, 0), (1, 1), (2, 2), (3, 3), (4, 4), (5, 5),..... right ?

    • 11 months ago
  15. Annetta_Martin
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    Yes

    • 11 months ago
  16. ganeshie8
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    do u see any such point in the given line ?

    • 11 months ago
  17. ganeshie8
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    or easy way is to look at given options !

    • 11 months ago
  18. Annetta_Martin
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    4,4 right?

    • 11 months ago
  19. ganeshie8
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    right !, and u can confirm it in the graph also. if u see, the line is actually going thru (4,4)

    • 11 months ago
  20. Annetta_Martin
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    Thank you soo much! You're awesome for explaining everything :D

    • 11 months ago
  21. ganeshie8
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    np.. yw !

    • 11 months ago
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