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anonymous

  • one year ago

A box company completed a study to determine the number of boxes an old machine would produce in an hour. They determined that the old machine produced 280 boxes in 4 hours. During its first day of operation, a new machine, after running a full 8 hours, produced 56 more boxes than the old machine would have produced in that time. Which of the following is true about the new machine

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  1. anonymous
    • one year ago
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    The equation y = 77x represents the production rate of the new machine The equation y = 84x represents the production rate of the new machine. The new machine can produce 14 boxes an hour. The new machine can produce 7 more boxes an hour than the old machine

  2. anonymous
    • one year ago
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    @Michele_Laino

  3. anonymous
    • one year ago
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    i think it the first one but im not good at math so

  4. Michele_Laino
    • one year ago
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    the working rate R_1 of the first machine is: \[{R_1} = \frac{{280}}{4}\]

  5. anonymous
    • one year ago
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    huh?

  6. anonymous
    • one year ago
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    r u talking about the slope

  7. Michele_Laino
    • one year ago
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    more precisely \[{R_1} = \frac{{280}}{4} = 70\]

  8. anonymous
    • one year ago
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    u totaly lost me

  9. Michele_Laino
    • one year ago
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    please follow my reasoning

  10. Michele_Laino
    • one year ago
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    so after 8 hours, the first machine produces: 70*8=560 boxes

  11. anonymous
    • one year ago
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    i have a fieeling ur talking about the slope but isnt the formula for slope Y=MX+B

  12. Michele_Laino
    • one year ago
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    whereas the secon machine, produces: 560+56=616 boxes then the working rate R_2 of the second machine is: \[{R_2} = \frac{{616}}{8} = 77\]

  13. Michele_Laino
    • one year ago
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    namely: \[{R_2} = {R_1} + 7\]

  14. anonymous
    • one year ago
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    ok

  15. Michele_Laino
    • one year ago
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    what can you conclude?

  16. anonymous
    • one year ago
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    I hate math i suck at it and none of that made sense

  17. Michele_Laino
    • one year ago
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    please look at the last option

  18. anonymous
    • one year ago
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    o i didnt see that ok what about \[R2=R1+7\]

  19. anonymous
    • one year ago
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    o the secound machine makes 7 more boxes in and hour then the old machien

  20. Michele_Laino
    • one year ago
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    yes! exactly!!

  21. anonymous
    • one year ago
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    i feel smart

  22. Michele_Laino
    • one year ago
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    :)

  23. anonymous
    • one year ago
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    man it says i had to choose to it was the first one and the lastone

  24. Michele_Laino
    • one year ago
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    the first one is not a rate, it is a relationship

  25. Michele_Laino
    • one year ago
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    77 is a rate

  26. Michele_Laino
    • one year ago
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    and: y= 77 x is an equation

  27. anonymous
    • one year ago
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    ya

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