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anonymous

  • one year ago

Can someone check my work plz? 2/3n=8 n=____ I get 9 Is that right? IS the correct answer n=12???

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  1. anonymous
    • one year ago
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    how did u get that ?

  2. anonymous
    • one year ago
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    tbh I took 2/3 and multiplied to get a whole # 2/383=6/3 which is the whole #2

  3. anonymous
    • one year ago
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    hold on ...think I goofed on it

  4. anonymous
    • one year ago
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    waiiit a min i am confused see the easiest method

  5. anonymous
    • one year ago
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    so frustrated.... now i can not duplicate the problem... ugh

  6. anonymous
    • one year ago
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    2 = 3n* 8 do it like this

  7. anonymous
    • one year ago
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    2 = 24n

  8. anonymous
    • one year ago
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    so n 2/24

  9. anonymous
    • one year ago
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    n = 1 /12

  10. anonymous
    • one year ago
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    i understand the problem as 2/3 multiplied by N gives you the answer of 8 therefor 2/3 goes into 8 ____ times the ____ being what N= right?

  11. anonymous
    • one year ago
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    nooo dont confuse it take it simpleeee

  12. anonymous
    • one year ago
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    2/3n = 8\[\frac{ 2 }{ 3n } =8\]

  13. anonymous
    • one year ago
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    therefore 2 = 3n * 8

  14. anonymous
    • one year ago
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    2 = 24n

  15. anonymous
    • one year ago
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    24n = 2

  16. anonymous
    • one year ago
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    n = 2/24

  17. anonymous
    • one year ago
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    n = 1 /12

  18. anonymous
    • one year ago
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    thats it

  19. anonymous
    • one year ago
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    i just got n=12 using the http://www.tiger-algebra.com/drill/2/3n=8/

  20. anonymous
    • one year ago
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    Is it 2/3n or (2/3)*n?

  21. anonymous
    • one year ago
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    no its -8 and in ur equation it is =8

  22. anonymous
    • one year ago
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    it says solve. 2over 3n=8 n=___ so 2/3n=8 n=__

  23. anonymous
    • one year ago
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    So then Smitha is right

  24. anonymous
    • one year ago
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    idk.... I went to http://www.tiger-algebra.com/ and used their system and it says only one answer can be found and that is n=12. looking at how it is worked out it appears to be correct but now i am second guessing things. I only have one try with this test so I can not afford to fail it :/

  25. anonymous
    • one year ago
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    If I could suggest something real quick, your equation is 2/3n = 8. If you have a calculator on you you could find that 2/3 is .6 (repeated). So .6n(repeated) = 8. Then you have to divide the .6n (repeated) by .6 to get "n" by itself. And the 8 by the .6 as well. The answer I got was 12. Sorry if this didn't help.

  26. anonymous
    • one year ago
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    Thank you. It helps and that is the same principle steps I was doing

  27. anonymous
    • one year ago
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    Ok, and no problem :D This used to be my favorite type of math.

  28. anonymous
    • one year ago
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    can you maybe help me with a few more , if you have time?

  29. anonymous
    • one year ago
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    Sure. Just give me a minute or two with my responses :P

  30. anonymous
    • one year ago
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    after an hour and a half i am only on #5...lol...

  31. anonymous
    • one year ago
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    There is a difference between 2/3n and and (2/3)*n

  32. anonymous
    • one year ago
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    |dw:1432914834349:dw|

  33. anonymous
    • one year ago
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    Yes. I believe it is the second one, just wrote out differently.

  34. anonymous
    • one year ago
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    You clearly have misinterpreted the question

  35. anonymous
    • one year ago
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    @LiamR Doesn't 2 over 3n mean the first one

  36. anonymous
    • one year ago
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    Based off of what @TTinSC said I inferred it was the second.

  37. anonymous
    • one year ago
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    @TTinSC how was it written on your test.

  38. anonymous
    • one year ago
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    If it is really 2 over 3n then @abdul_shabeer is absolutely right.

  39. anonymous
    • one year ago
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    |dw:1432915004134:dw| solve for n

  40. anonymous
    • one year ago
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    @abdul_shabeer ^

  41. anonymous
    • one year ago
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    @LiamR is right, then

  42. anonymous
    • one year ago
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    http://www.tiger-algebra.com/drill/2/3n=8/ this is the site i use to answer this maybe you can go there and see if it is correct... so confused now:[

  43. anonymous
    • one year ago
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    You had a very good point @abdul_shabeer , TTinSC make sure you pay attention to the equation setup in-case you have these in the future.

  44. anonymous
    • one year ago
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    When written like that @TTinSC answer 12 is correct.

  45. anonymous
    • one year ago
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    that is the actual page i entered the problem on

  46. anonymous
    • one year ago
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    ok... here comes the next one

  47. anonymous
    • one year ago
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    |dw:1432915347174:dw|

  48. anonymous
    • one year ago
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    so that would be 7z-1 divided by2=3z-2....correct?

  49. anonymous
    • one year ago
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    Yes. I believe so. Any idea on how to get started? If not let me know.

  50. anonymous
    • one year ago
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    brain dead atm ...lol...trying to remember the steps

  51. anonymous
    • one year ago
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    Ok. So what you want to try and work towards is getting "z" to be alone on one side. Before you can do that though, you have to get rid of the 2 in the denominator on the left side of the equation. Do you know how to do that?

  52. anonymous
    • one year ago
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    If not that's ok

  53. anonymous
    • one year ago
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    so it should be 7z=7z/1=7z*2 /2 or to state it 7zequals 7z over1( or divided by1) equals 7z multiplied by2 over(or divided by)2

  54. anonymous
    • one year ago
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    -0.375?

  55. anonymous
    • one year ago
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    Not quite sure how you got that. There is an easier way to do it. Since the left equation is being divided by 2, to get rid of the 2, all you have to do is multiply all of the "groupings" on the right side by two. So instead of the equation [ 7z - 1 / 2 = 3z - 2 ] it would be 7z - 1 = 6z - 4 ]. See what I did. |dw:1432916166225:dw|

  56. anonymous
    • one year ago
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    Sorry for the terrible drawing. Not good with the tool xD.

  57. anonymous
    • one year ago
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    z= -3/8 = -0.375

  58. anonymous
    • one year ago
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    LMAO.... ikr..same here and i can not remember how to screen shot...lol

  59. anonymous
    • one year ago
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    Basically what I did was multiplied the left side by 2 to get rid of the 2, and the right side by 2 to balance the equation.

  60. anonymous
    • one year ago
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    So now that you have the equation 7z -1 = 6z - 4, do you know how to simplify it?

  61. anonymous
    • one year ago
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    @TTinSC do you understand what I did? Or are you confused

  62. anonymous
    • one year ago
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    i think after simplifying it is the z=-3/8 as a fraction or -0.375 as a #

  63. anonymous
    • one year ago
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    I am not sure how you got that. Are you following the steps I am showing?

  64. anonymous
    • one year ago
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    or at least i think so

  65. anonymous
    • one year ago
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    soooo confused ... i was out sick for several weeks and i am now trying to basically cram all of this in and i do believe my brain is on overload... i swear there is smoke coming out of my ears...lol

  66. anonymous
    • one year ago
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    That is not what I got. The last step is super easy. When you have the equation 7z -1 = 6z - 4, what I would do is add a 1 to both sides. So now your equation is 7z = 6z - 3. Then I would subtract the 6z from both sides. So z = -3. Is this a multiply choice thing or short answer?

  67. anonymous
    • one year ago
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    |dw:1432916734196:dw||dw:1432916755139:dw||dw:1432916776530:dw|

  68. anonymous
    • one year ago
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    ok... not 100% on understanding... i think i keep skipping a step... but looking at what you did i think i understand now :)

  69. anonymous
    • one year ago
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    so z=-3

  70. anonymous
    • one year ago
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    Ok. If you don't please let me know. I had missed a lot of days too and it always came back to kill me on tests. All I did was subtract, divide, and add values from each side (making sure what I did to one side I did to the other so the equation stayed balanced) and got "z" alone

  71. anonymous
    • one year ago
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    And yes z = -3 based on my answer

  72. anonymous
    • one year ago
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    u in k12?

  73. anonymous
    • one year ago
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    No. Why?

  74. anonymous
    • one year ago
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    i got sick missed several weeks came back got locked out bc study island was behind ..bc i had been sick ...by the time i got the ols back open i had missed from the begining of Nov. tho the first of march.... it is just overwhelming me to try and catch up... got all other subjects caught up , but only have to do the assesments for math... only have till next Thursday... current math grde...36%... i have always been on the honor roll and the superintendents list but this year i am tanking and so frustrated at this point that i am ready to cry...

  75. anonymous
    • one year ago
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    Woah. Well then... all I can say is I wish you the best of luck and hang in there. It should get better.

  76. anonymous
    • one year ago
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    i am working on the first semester exam atm... and you only get 1 chance. i have to get atleast an 80 on it. most of the tests give you 3 tries to get the highest grade... not this tho

  77. anonymous
    • one year ago
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    Yea, I know the feeling. I am in a virtual program as well and it gives the same situation.

  78. anonymous
    • one year ago
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    ok... this one is a word problem... i think i have the answer

  79. anonymous
    • one year ago
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    when 8 subtracted from Ollie's age result is same as subtracting 16 from 3 times Ollie's age how old is Ollie

  80. anonymous
    • one year ago
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    I have to take care of something real quick I'll be back in a minute.

  81. anonymous
    • one year ago
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    if Ollie =x x-8=y y=3x-16 x-8=3x-16 -8=2x-16 8=2x 4=x answer is 4 yrs. old

  82. anonymous
    • one year ago
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    x-8=3x-16 -8=2x-16 8=2x 4=x

  83. anonymous
    • one year ago
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    lol

  84. anonymous
    • one year ago
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    tyvm

  85. anonymous
    • one year ago
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    got some more... can u help?

  86. anonymous
    • one year ago
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    sure =)

  87. anonymous
    • one year ago
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    What is the standard form of the equation? 5x = 4y – 3 A. 5x – 4y + 3 = 0 B. 5x = 4y – 3 C. 5x + 3 = 4y D. 5x – 4y = –3

  88. anonymous
    • one year ago
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    not so great with these

  89. anonymous
    • one year ago
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    subtract 4y and add 3 to both sides

  90. anonymous
    • one year ago
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    that would be setting y to 0 i cant remember if thats standard or not but its setting y to 0

  91. anonymous
    • one year ago
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    not the slightest idea trying to search thru book for the process

  92. anonymous
    • one year ago
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    think the answer is A

  93. anonymous
    • one year ago
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    Standard form is A + B = C. I would do a quick google search for "standard form" but I believe the answer is D

  94. anonymous
    • one year ago
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    Ah I remember now. Standard form is when the equation goes from highest numbers (with variables) to lowest numbers, then to numbers without variables. So basically highest to lowest numbers with variables, then if no variables highest to lowest. |dw:1432918595652:dw| Above is an example with random numbers and variables

  95. anonymous
    • one year ago
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    ur right Liam... it is D

  96. anonymous
    • one year ago
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    What is the slope of the line 4y – 6x + 12 = 0 in simplest form?

  97. anonymous
    • one year ago
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    i do not get the slope thing at all.... spent 6 hours yesterday trying to figure it out...

  98. anonymous
    • one year ago
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    Do you know what slope intercept forms is. It is y = mx + b. So what you are trying to do is get the 4y alone on one side. (kinda like we did earlier) any ideas on what to move first?

  99. anonymous
    • one year ago
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    no... somehow i got a few right yesterday but i can not duplicate it...

  100. anonymous
    • one year ago
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    give me a sec... gonna try the formula i used yesterday just got to find it in my notebook...

  101. anonymous
    • one year ago
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    i subtract 12 from both sides and add 6x to both sides and get 4y=6x-12 then divide by 4 on each side right?

  102. anonymous
    • one year ago
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    Ok. What i would do first is take the equation 4y - 6x + 12 = 0 and add a 6x to both sides. |dw:1432918942424:dw| Now you have 4y + 12 = 6x. I would subract a 12 from both sides. |dw:1432919001252:dw| Now you have 4y = 6x + 12. If you notice it looks like Y = mx + b. Now, y is still not alone because of the 4, so you have to divide every term by 4. Look at this picture for help because this is tricky. |dw:1432919070957:dw| So now you have y = 6/4x + 12 (y = 1.5x + 12). So the slope in simplest form would be 6/4 or 1.5

  103. anonymous
    • one year ago
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    it asks for a fraction answer so that would be 3/2

  104. anonymous
    • one year ago
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    |dw:1432919197749:dw| the "m" in the equation always equals the slope

  105. anonymous
    • one year ago
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    simplified ...right??

  106. anonymous
    • one year ago
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    and yes 3/2. I didn't simplify the 6/4 :/

  107. anonymous
    • one year ago
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    What is the y-intercept of the line represented by the equation? y = 7x + 2

  108. anonymous
    • one year ago
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    I was going to say this beofe but didn't. In the equation y = mx + b (or your equation y = 7x +2) the m (or 7) always equals the slope and the b (or 2) always equals the y intercept

  109. anonymous
    • one year ago
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    before*

  110. anonymous
    • one year ago
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    ok... so in the new problem will that help me solve for the y intercept

  111. anonymous
    • one year ago
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    Yes

  112. anonymous
    • one year ago
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    |dw:1432919504898:dw| @TTinSC what did I say the "b" was equal to?

  113. anonymous
    • one year ago
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    so the answer would be 2... bc it is clearly stated in the equation...right... i think

  114. anonymous
    • one year ago
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    Yes

  115. anonymous
    • one year ago
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    Easiest question ever right xD

  116. anonymous
    • one year ago
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    sweet... ha i get that really good now ...lol

  117. anonymous
    • one year ago
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    Haha. Anymore?

  118. anonymous
    • one year ago
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    yep

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  119. anonymous
    • one year ago
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    so very much h8 these... y did they have to take the fun out of graphs lol

  120. anonymous
    • one year ago
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    Can't open that file

  121. anonymous
    • one year ago
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    ok... i used apache open office... it should work with windows ms office... let me try something else... it is a graph

  122. anonymous
    • one year ago
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    sorry wifi dropped ...

  123. anonymous
    • one year ago
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    What is the equation of the line expressed in slope-intercept form? y = –3x – 1 y = 3x + 2 y = 2x + 3 y = –2x + 3

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