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mckenzieandjesus

  • one year ago

Find the common ratio of the sequence. –164, –82, –41, –20.5, . . .

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  1. jim_thompson5910
    • one year ago
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    Pick any term you want except for the first term. Divide this term by the previous term.

  2. mckenzieandjesus
    • one year ago
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    |dw:1444169320528:dw|

  3. mckenzieandjesus
    • one year ago
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    oh okay i did it a different way and couldn't figure out what 10 1/4th would be so i just clicked 1/2.. comes to find out 2-20.5/-41= 1/2 :)

  4. jim_thompson5910
    • one year ago
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    what that work shows is that you're dividing each term by 2 to get the next term notice how (2nd term)/(1st term) = (-82)/(-164) = 1/2 = 0.5

  5. jim_thompson5910
    • one year ago
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    that's an interesting way to get the answer

  6. mckenzieandjesus
    • one year ago
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    Yeah thats what I figured out above :)

  7. jim_thompson5910
    • one year ago
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    `so 10 1/4 does = 1/2?` idk what you mean here

  8. jim_thompson5910
    • one year ago
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    10 1/4 is not equal to 1/2

  9. jim_thompson5910
    • one year ago
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    but yeah the common ratio is 1/2 or 0.5

  10. jim_thompson5910
    • one year ago
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    |dw:1444169630481:dw|

  11. mckenzieandjesus
    • one year ago
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    ohh

  12. mckenzieandjesus
    • one year ago
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    well I still clicked the right answer :)

  13. mckenzieandjesus
    • one year ago
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    thank u for showing me the correct way to do it

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