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anonymous

  • one year ago

Jan types at an average rate of 12 pages per hour .at that rate,how long will it take Jan to type 100 pages?

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  1. skullpatrol
    • one year ago
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    Any ideas?

  2. skullpatrol
    • one year ago
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    |dw:1441016435634:dw|

  3. imqwerty
    • one year ago
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    Adjust ur typing speed to 12pages per hour and practically find out :P :D Jk

  4. skullpatrol
    • one year ago
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    |dw:1441016739363:dw|

  5. anonymous
    • one year ago
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    a) 8 hours and 3 minutes b)8 hours and 15 minutes c)8 hours and 20 minutes d)8 hours and 30 minutes e)8 hours and 33 1/3 minutes and the answer is c but why friends

  6. anonymous
    • one year ago
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    sorry friends i don t write the answers first bec the connection faild soory

  7. imqwerty
    • one year ago
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    Its okhay :)

  8. anonymous
    • one year ago
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    ok can u help

  9. skullpatrol
    • one year ago
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    |dw:1441016929675:dw|

  10. imqwerty
    • one year ago
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    1hour--------------------->12pages 1/12hours--------------->1page Multiply both sides by100 So 100/12hours---------->100pages

  11. skullpatrol
    • one year ago
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    |dw:1441017127325:dw|

  12. imqwerty
    • one year ago
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    So 100/12hrs = 100/12 x60mins r needed to type 100pages So he needs 500mins So that is 8hours 20mins :)

  13. anonymous
    • one year ago
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    sorry imqwerty but how u know that 1/12 hours ----- 1pages

  14. phi
    • one year ago
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    a few ways, but this might be the best: rate * time = amount this is almost the same problem as if you go 12 miles per hour, how long to go 100 miles? here rate is 12 pages per hour 12 * t = 1 page (this is to find how long it takes to type 1 page) t = 1/12

  15. phi
    • one year ago
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    but of course you really want 12 * t = 100 and to solve, divide both sides by 12 t= 100/12

  16. phi
    • one year ago
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    you could also use ratios \[ \frac{12 \ pages}{1 \ hour}= \frac{100 \ pages}{x \ hours} \]

  17. anonymous
    • one year ago
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    ok phi but the answer will be by point how i keep it 8 h and 20 how i know that the anser is 20 m not other minutees

  18. anonymous
    • one year ago
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    plz help

  19. phi
    • one year ago
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    first what is 100/12 ?

  20. anonymous
    • one year ago
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    100/12 is 8.333333333

  21. anonymous
    • one year ago
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    or 25/3

  22. phi
    • one year ago
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    ok, write it as a mixed number 8 and a fraction

  23. anonymous
    • one year ago
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    49/3

  24. imqwerty
    • one year ago
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    @Nourage i jst divided both sides by 12 to find out time taken to write 1 page :)

  25. phi
    • one year ago
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    like this 25/3 3 goes into 25 8 times with a remainder of 1 write the remainder over 3 \[ \frac{25}{3}= 8 \frac{1}{3} \]

  26. phi
    • one year ago
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    that means it takes 8 and 1/3 hours that is a good answer, but they have the choices as 8 and some number of minutes. we have to change 1/3 of an hour into minutes we know 1 hour is 60 minutes 1/3 * 60 = number of minutes.

  27. anonymous
    • one year ago
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    oh ya thank u very very much friend u are the best (phi) and thank u friends all of u helps me

  28. anonymous
    • one year ago
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    thanks friends

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