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anonymous

  • one year ago

I would really appreciate if someone could help me with the following questions below. I really really stink at this.

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  1. anonymous
    • one year ago
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    Here it is

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  2. anonymous
    • one year ago
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    \(\Large\rm\color{orange}{Welcome~to~OpenStudy!}\) We can help you but you'll have to figure the answers out on your own because this is a quiz.

  3. anonymous
    • one year ago
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    No worries that's what I'm looking for.

  4. anonymous
    • one year ago
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    @just_one_last_goodbye @GreatGuy

  5. anonymous
    • one year ago
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    @Australopithecus

  6. phi
    • one year ago
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    any idea what the little "red marks" mean in your picture?

  7. anonymous
    • one year ago
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    What red marks are you referring to?

  8. phi
    • one year ago
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    the little red lines on AB and BC

  9. anonymous
    • one year ago
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    No clue tbh

  10. Rhystic
    • one year ago
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    the red ticks indicate that AB and BC are equal in length so if AB = 80 you have your answer. This is standard for any problem so commit it to memory; if there are more then one set of lines with same lengths they are indicated with two tick marks each for second set etc.

  11. phi
    • one year ago
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    oh. When you see a "hash mark" like those, it means the two line segments are the same length

  12. phi
    • one year ago
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    so you should think: from A to B is some distance. and from A to C is twice the distance from A to B

  13. anonymous
    • one year ago
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    Okay so it would be 160

  14. phi
    • one year ago
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    now you need to read what they told you. what did they tell you ?

  15. phi
    • one year ago
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    do you see the question: if AC is 80 ... that means the distance from A to C is 80 (inches, miles, whatever) they want to know A to B we know AB + BC = AC (the two halves add up to the whole)

  16. anonymous
    • one year ago
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    ahh 40

  17. phi
    • one year ago
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    yes.

  18. phi
    • one year ago
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    For Q6, if AB is 28, then BC is what ?

  19. phi
    • one year ago
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    it is the same picture and the same idea

  20. anonymous
    • one year ago
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    56

  21. phi
    • one year ago
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    AB and BC are the same size (that is what the red lines mean)

  22. anonymous
    • one year ago
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    So they are both 28?

  23. phi
    • one year ago
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    yes AB and BC are both 28

  24. phi
    • one year ago
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    they say BC is also 3x+7 so if BC =28 and BC= 3x +7 we can say 3x+7= 28 can you "solve for x" ?

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spraguer (Moderator)
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