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anonymous

  • one year ago

The minimum and maximum temperature for a day in Cupcake Town can be modeled by the equation below: 3|x − 8| + 15 = 18 What are the minimum and maximum temperatures for this day?

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  1. welshfella
    • one year ago
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    you should have the confidence to so these on your own now

  2. anonymous
    • one year ago
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    you got this from flvs

  3. anonymous
    • one year ago
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    so before we start we have to know what type of equation this is

  4. anonymous
    • one year ago
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    the type of brackets are a dead give away because it shows us it is a absolute value equation

  5. anonymous
    • one year ago
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    since we now know it is a absolute value equation we know you can only have 2 answers

  6. anonymous
    • one year ago
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    When dealing with absolute equations you know you are going to have a + and a -. For instance 3|x − 8| + 15 = 18 Subtract 15 from both sides of the equal sign. 3|x − 8| + 15 = 18 3|x − 8| + 15-15 = 18 - 15 3|x − 8| = 3 Now divide 3|x − 8| = 3 by three on each side of the equal sign. 3|x − 8| /3 = 3 /3 |x − 8| = 1 Now we have |x − 8| = 1 but we also have |x − 8| = -1 notice the - 1. When dealing with absolute equations like this you will have a + and a - Now just solve these two equations |x − 8| = 1 and |x − 8| = -1

  7. anonymous
    • one year ago
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    why did you give the answer

  8. anonymous
    • one year ago
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    @Matt_J02 I did not. He / she still needs to finish it.

  9. anonymous
    • one year ago
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    I helped show her or him how to break it down because he or she might be having trouble in breaking down the equation to a form she or he can work with.

  10. welshfella
    • one year ago
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    3|x − 8| + 15 = 18 subtract 15 from both sides 3|x - 8| = 3 divide both sides by 3 |x - 8| = 1 solve the 2 equations x - 8 = 1 and x - 8 = -1

  11. welshfella
    • one year ago
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    @Nixy - you need to remove the mod lines around the x - 8

  12. anonymous
    • one year ago
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    I was leaving that for them to do :-) @welshfella

  13. welshfella
    • one year ago
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    nevertheless it could confuse them at that stage

  14. anonymous
    • one year ago
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    @welshfella maybe but I would hope they can at least remove them at this stage in their study.

  15. welshfella
    • one year ago
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    - oh ok - i guess it was a deliberate mistake on your part.

  16. anonymous
    • one year ago
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    @welshfella Not a mistake at all. Lets just take it a step further so he or she is not perplexed. I mean if he or she cannot remove absolute bars I am sure he or she cannot solve x-8 = 1 and x-8 = -1 x-8 = 1 and x-8 = -1 Now add 8 to each side of the equation |x-8| = 1 x-8 = 1 x - 8+8 =1 + 8 x = 9 |x-8| = -1 x-8 = -1 x-8+8 = -1+8 x= 7

  17. welshfella
    • one year ago
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    nevertheless writing |x - 8! = -1 is an incorrect statement

  18. anonymous
    • one year ago
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    @welshfella it is not if you remove the bars, which is the simplest thing to do in this problem....I was showing the user a process . Nitpick much? Also, you stated |x - 8! = -1. You should use a bar | and not an ! mark. I might not understand what you mean when you stat |x - 8! = -1 ...... Rolls eyes

  19. welshfella
    • one year ago
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    its not nitpicking at all and typos are easily made the fact is x - 8 = -1 does not follow from |x - 8| = -1

  20. anonymous
    • one year ago
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    @welshfella ok, whatever. Have a good day........Roll eyes

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