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katytho

  • one year ago

Will medal and fan! I need help on a K12 Math assessment it's 9:00 pm and Ive been trying to complete this all day :( please help here is picture of problem http://i.imgur.com/A9RtbOe.jpg

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  1. katytho
    • one year ago
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    if anyone could help me with this that would be great Ive done it 2 times and got bad grades both times

  2. anonymous
    • one year ago
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    multiply both sides by 5 to clear the annoying fraction

  3. katytho
    • one year ago
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    the parentheses on the left side and on the right side?

  4. anonymous
    • one year ago
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    you should get \[2x-15+3x=21\tfrac{1}{4}\] now at least the fractions on the left are gone

  5. anonymous
    • one year ago
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    yes left and right

  6. katytho
    • one year ago
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    okay

  7. anonymous
    • one year ago
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    now combine like terms on the left, i .e. add \(2x+3x\)

  8. katytho
    • one year ago
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    okay 5x

  9. anonymous
    • one year ago
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    so now we are at \[5x-15=21\tfrac{1}{4}\] add 15

  10. katytho
    • one year ago
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    sorry if my spelling or grammer is a bit off im really tired right now :|

  11. katytho
    • one year ago
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    what are we adding 15 to

  12. anonymous
    • one year ago
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    no one here is a grammarian (least of all me)

  13. anonymous
    • one year ago
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    the math teaches say "add it to both sides" but you really add it to the right to get rid of the -15 on the left

  14. katytho
    • one year ago
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    oh ok yes I think

  15. katytho
    • one year ago
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    5x = 21 1/4 is left

  16. anonymous
    • one year ago
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    no

  17. katytho
    • one year ago
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    oh ok

  18. anonymous
    • one year ago
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    you need to add the 15 to the right as well

  19. katytho
    • one year ago
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    5x = 36 1/4

  20. anonymous
    • one year ago
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    \[5x=36\tfrac{1}{4}\]

  21. anonymous
    • one year ago
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    yeah that i hate mixed numbers now divide by 5

  22. katytho
    • one year ago
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    divide what by 5 sorry again

  23. katytho
    • one year ago
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    5/5 ?

  24. anonymous
    • one year ago
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    you have \[5x=36\tfrac{1}{4}\] and you want \[x=\text{sommat}\] to get there you have to divide both sides by 5

  25. anonymous
    • one year ago
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    i.e. \[x=36\tfrac{1}{4}\div 5\]

  26. katytho
    • one year ago
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    7 1/4 right?

  27. anonymous
    • one year ago
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    yup

  28. katytho
    • one year ago
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    :D THANK YOU!

  29. anonymous
    • one year ago
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    yw you got more? i noticed you were on a deadline

  30. katytho
    • one year ago
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    That was actually the last question of the assessment i can tell you how i did tho

  31. anonymous
    • one year ago
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    saved the best for last i guess

  32. katytho
    • one year ago
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    Ya

  33. anonymous
    • one year ago
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    is it a placement test?

  34. katytho
    • one year ago
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    k12 is a bit wierd you take a small test to see if you learned everything correctly from the lesson before it after you go through the lesson.

  35. anonymous
    • one year ago
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    ugh

  36. katytho
    • one year ago
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    By the way I got 5/5 :)

  37. katytho
    • one year ago
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    Thank you again

  38. anonymous
    • one year ago
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    that is good! guess you got the first 4 on your own yw

  39. katytho
    • one year ago
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    ya ^-^

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