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Phebe

  • one year ago

MATH HELPZZ! http://prntscr.com/7ofnoj

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  1. StudyGurl14
    • one year ago
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    Your first step would be to factor the number 20.

  2. Phebe
    • one year ago
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    ok

  3. StudyGurl14
    • one year ago
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    I mean, find the factors of 20. Which numbers when multiplied together, equals 20?

  4. Phebe
    • one year ago
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    5*4

  5. StudyGurl14
    • one year ago
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    correct. so 4 and 5 are factors. What other number combinations equal 20 when multiplied?

  6. Phebe
    • one year ago
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    10*2

  7. Phebe
    • one year ago
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    ^^

  8. StudyGurl14
    • one year ago
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    correct. so so far we have 2, 4, 5, and 10

  9. StudyGurl14
    • one year ago
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    One more set of numbers. Can you find them?

  10. Phebe
    • one year ago
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    i dont know any others lol

  11. StudyGurl14
    • one year ago
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    Hint: a number is always divisible by itself and 1

  12. Phebe
    • one year ago
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    is it 20*1

  13. StudyGurl14
    • one year ago
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    yes. So, what set contains the numbers 1, 2, 4, 5, 10, and 20?

  14. StudyGurl14
    • one year ago
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    only contains those numbers, with no others

  15. Phebe
    • one year ago
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    umm... i dont know

  16. Phebe
    • one year ago
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    is the Answer B?

  17. StudyGurl14
    • one year ago
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    no, not be. which set contains only the previously mentioned numbers?

  18. Phebe
    • one year ago
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    A is the answer?

  19. StudyGurl14
    • one year ago
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    no. The answer would contain all those numbers and no other. The factrs of 20 are 1, 2, 4, 5, 10, and 20. So what set looks like this? {1, 2, 4, 5, 10, 20}

  20. Phebe
    • one year ago
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    OOOO omg thank you soo much

  21. StudyGurl14
    • one year ago
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    You're welcome. :)

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