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anonymous

  • one year ago

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  1. Vocaloid
    • one year ago
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    1/15 + 1/x = 1/20 start by multiplying both sides by 60

  2. anonymous
    • one year ago
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    4+60=3?

  3. anonymous
    • one year ago
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    @Vocaloid

  4. Vocaloid
    • one year ago
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    don't forget the x

  5. anonymous
    • one year ago
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    4+60x=3?

  6. Vocaloid
    • one year ago
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    (whoops, I forgot a negative sign) should be 1/15 - 1/x = 1/20 which gives us 4 - 60/x = 3

  7. anonymous
    • one year ago
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    -60/x=-1?

  8. Vocaloid
    • one year ago
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    yes

  9. Vocaloid
    • one year ago
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    now multiply both sides by x

  10. anonymous
    • one year ago
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    -60=-1x

  11. Vocaloid
    • one year ago
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    good, so x = ?

  12. anonymous
    • one year ago
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    60?

  13. Vocaloid
    • one year ago
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    right, so x = 60 minutes

  14. anonymous
    • one year ago
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    one more?

  15. Vocaloid
    • one year ago
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    sure

  16. anonymous
    • one year ago
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    Byron can fill a drying rack with dishes in 15 minutes. While Byron fills the drying rack, Emmitt takes dishes out of the drying rack and puts them in bins. With Emmitt taking dishes out of the drying rack, it takes 35 minutes for Byron to fill the drying rack. Which of the following can be used to determine the amount of time it takes for Emmitt to empty the drying rack if Byron is not adding dishes? 1 over 15 plus 1 over 35 equals 1 over x 1 over 15 minus 1 over x equals 1 over 35 1 over 35 minus 1 over x equals 1 over 15 1 over 15 minus 1 over x equals x over 35

  17. anonymous
    • one year ago
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    vocaloid?

  18. Vocaloid
    • one year ago
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    1/15 - 1/x = 1/35 same rule as last time

  19. Vocaloid
    • one year ago
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    we don't actually need to solve for x this time ofc

  20. anonymous
    • one year ago
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    B?

  21. anonymous
    • one year ago
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    B right?

  22. Vocaloid
    • one year ago
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    yes

  23. anonymous
    • one year ago
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    thx i got a 100

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spraguer (Moderator)
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