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moazzam07

  • one year ago

Please help medal and fan

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  1. moazzam07
    • one year ago
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  2. moazzam07
    • one year ago
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    Please help

  3. DanJS
    • one year ago
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    They want the units of miles per 1 hour, \[\frac{ 2/7~ miles }{ 2/5~hour } = \frac{ ?~mile }{ 1~hour }\]

  4. DanJS
    • one year ago
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    do you know how to divide fractions?

  5. moazzam07
    • one year ago
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    yes

  6. moazzam07
    • one year ago
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    5/7

  7. DanJS
    • one year ago
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    Recall.. \[\frac{ \frac{ a }{ b } }{ \frac{ c }{ d } } = \frac{ a }{ b }*\frac{ d }{ c } = \frac{ a*d }{ b*c }\] flip the bottom fraction over, and multiply them

  8. DanJS
    • one year ago
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    \[\frac{ 2/7 }{ 2/5 } = \frac{ 2 }{ 7 }*\frac{ 5 }{ 2 }\]

  9. DanJS
    • one year ago
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    Then it looks like they just want to change into a mixed number

  10. moazzam07
    • one year ago
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    Ok so im going to do 2/7 times 5/2?

  11. moazzam07
    • one year ago
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    10/14 = 5/7

  12. DanJS
    • one year ago
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    right, then just reduce

  13. DanJS
    • one year ago
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    good

  14. anonymous
    • one year ago
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    @DanJS you didnt finish helping me out man

  15. moazzam07
    • one year ago
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    Wait so the answer is D OR C?

  16. moazzam07
    • one year ago
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    I got C

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spraguer (Moderator)
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is replying to Can someone tell me what button the professor is hitting...

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