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bunyonb

  • 3 years ago

37.5% of a number is 105. what is the number?

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  1. mayankdevnani
    • 3 years ago
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    |dw:1355145221270:dw|

  2. mayankdevnani
    • 3 years ago
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    can you now solve it? @bunyonb

  3. bunyonb
    • 3 years ago
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    It never occured to me that that was the solution.

  4. bunyonb
    • 3 years ago
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    There is an equation question that says: From the graph read off where − 3 + x^2 + 2 x = − 2 x − 3

  5. mayankdevnani
    • 3 years ago
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    that was the solution , right

  6. bunyonb
    • 3 years ago
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    yes

  7. mayankdevnani
    • 3 years ago
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    and find the value of x, can you?

  8. bunyonb
    • 3 years ago
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    may i upload the paper to show you what i am talking about?

  9. mayankdevnani
    • 3 years ago
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    plzz

  10. bunyonb
    • 3 years ago
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    ok hold on

  11. mayankdevnani
    • 3 years ago
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    k

  12. bunyonb
    • 3 years ago
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    i upload

  13. bunyonb
    • 3 years ago
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    Look at question 3 and 4

  14. bunyonb
    • 3 years ago
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    at Question 3 (d)

  15. mayankdevnani
    • 3 years ago
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    sorry!!!i haven't any knowledge about this!!! sorry!!! @bunyonb

  16. bunyonb
    • 3 years ago
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    ok thanks for your help

  17. mayankdevnani
    • 3 years ago
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    a gr8 welcome

  18. bunyonb
    • 3 years ago
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    cwrw

  19. bunyonb
    • 3 years ago
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    @cwrw238 how about you?

  20. mayankdevnani
    • 3 years ago
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    @cwrw238 plz help bunyonb!!!

  21. cwrw238
    • 3 years ago
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    is it question 3 d you need help with?

  22. bunyonb
    • 3 years ago
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    yes

  23. bunyonb
    • 3 years ago
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    There is an equation question that says: From the graph read off where − 3 + x^2 + 2 x = − 2 x − 3

  24. cwrw238
    • 3 years ago
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    have you drawn the graph of y = -3 + x^2 + 2x?

  25. bunyonb
    • 3 years ago
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    yes

  26. cwrw238
    • 3 years ago
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    ok its the shape of a U i expect now you need to draw the graph of y = -2x - 3 on the same graph paper. plotting 3 points will be ok i suggest you plot: x y 0 -3 -2 1 1 -5

  27. bunyonb
    • 3 years ago
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    oh so i would need to plot two equations using some points thats what you are saying?

  28. bunyonb
    • 3 years ago
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    on the same graph

  29. cwrw238
    • 3 years ago
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    now their graph wil1 be a straight line which will probably cut the curved graph at two points at these points the 2 expressions are equal and thats what you want - the coordinates of these 2 points (x,y)

  30. cwrw238
    • 3 years ago
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    yes on same graph

  31. bunyonb
    • 3 years ago
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    ok

  32. cwrw238
    • 3 years ago
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    you should get (-4,5) for one of the points - i'll let you find the second one.

  33. bunyonb
    • 3 years ago
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    cool

  34. bunyonb
    • 3 years ago
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    so you dont have to plot all the points?

  35. cwrw238
    • 3 years ago
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    no 3 points is enough for y = -2x-3

  36. bunyonb
    • 3 years ago
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    ok

  37. bunyonb
    • 3 years ago
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    I just plot both equations

  38. bunyonb
    • 3 years ago
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    its true that the line touches the curve at -4

  39. bunyonb
    • 3 years ago
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    the line touches the curve starting at ( - 0.5,, -4)

  40. bunyonb
    • 3 years ago
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    but my graph is kinda messy so it is hard to figure out the second one

  41. bunyonb
    • 3 years ago
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    due to previous mistakes

  42. bunyonb
    • 3 years ago
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    so the second point would be when it stops touching the curve?

  43. bunyonb
    • 3 years ago
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    My graph is inaccurate because the straight line is kinda off

  44. bunyonb
    • 3 years ago
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    I scaled the y-axis as even numbers

  45. bunyonb
    • 3 years ago
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    How did you get -4, 5 ?

  46. bunyonb
    • 3 years ago
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    i got - 0.5, -4

  47. bunyonb
    • 3 years ago
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    @cwrw238 you there?

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