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LyraElizabethAdams

  • 4 years ago

Hi, I don't understand this question (attached). Would you please explain why the answer is: 120<x<125?

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  1. LyraElizabethAdams
    • 4 years ago
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  2. Hero
    • 4 years ago
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    It actually should have been 120<y<125

  3. Hero
    • 4 years ago
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    So even I would have gotten it wrong

  4. Hero
    • 4 years ago
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    Looks like you had no chance with that question.

  5. LyraElizabethAdams
    • 4 years ago
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    Okay. Are you able to explain why how you would get that answer?

  6. Hero
    • 4 years ago
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    Because x + y = 180 since x and y are supplementary. Therefore if the values of x are between 55 and 60, the values of y must be between 120 and 125

  7. LyraElizabethAdams
    • 4 years ago
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    OH, I see! Okay, thank you very much! :)

  8. Hero
    • 4 years ago
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    @campbell_st must be typing a book

  9. campbell_st
    • 4 years ago
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    firstly the question hasn't been proof read very well... the V should be B 55<y<60 then x will be in the solution x and y are supplementary... meaning that add to 180 degrees' the question is saying if 55<y< 60 or if y is between 55 and 60 degrees, between what measurements is x if y = 55 then x = 125 55+125 = 180 y = 60 then x = 120 60 + 120 = 180 so the solution is if y is an angle between 55 and 60 then x must be between 120 and 125 e.g. y = 57 x = 123

  10. LyraElizabethAdams
    • 4 years ago
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    :)

  11. LyraElizabethAdams
    • 4 years ago
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    Aha! That makes sense! Thanks so much for the thorough answer, campbell_st

  12. Hero
    • 4 years ago
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    Actually, since y is obtuse, the solution should have been 120<y<125

  13. LyraElizabethAdams
    • 4 years ago
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    Okay

  14. LyraElizabethAdams
    • 4 years ago
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    Thanks so much!

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