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anonymous

  • 4 years ago

jack usually mows his lawn in 6hr. mary mows the same yard in 5hr. how long will it take them to mow the yard together? i got 2 8/11?

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  1. amistre64
    • 4 years ago
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    how much does J cut in 1 hour? how much does M cut in 1 hour? J+M = total cut in 1hour

  2. amistre64
    • 4 years ago
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    flip that number for time taken ...

  3. amistre64
    • 4 years ago
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    \[\frac{1}{6}+\frac{1}{5}=\frac{5+6}{5*6}\] flips to:\[\frac{30}{11}\]hours to complete

  4. amistre64
    • 4 years ago
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    your number looks good

  5. anonymous
    • 4 years ago
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    so would i write 2 8/11 for my answer?

  6. anonymous
    • 4 years ago
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    i dont think so

  7. anonymous
    • 4 years ago
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    oh i see if i divide it out from 30/11 it will be that

  8. amistre64
    • 4 years ago
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    they tend to want the time in hrs min sec

  9. anonymous
    • 4 years ago
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    it will be mary plus jack= 11 hours together

  10. amistre64
    • 4 years ago
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    2 hours and 8/11 of another

  11. amistre64
    • 4 years ago
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    no abdullah; thats incorrect

  12. amistre64
    • 4 years ago
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    if 2 people work on the same yard they dont finish it in longer time then if they do it alone

  13. anonymous
    • 4 years ago
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    ok

  14. amistre64
    • 4 years ago
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    well, not mathically at least lol

  15. amistre64
    • 4 years ago
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    60/11 = an hour divided up into 11th parts; times 8 = minutes taken in an hour

  16. amistre64
    • 4 years ago
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    2 hours, 43 mins, and a little over 30 secs more

  17. anonymous
    • 4 years ago
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    i get it

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