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View Poll Results: 48÷2(9+3)=?????
2 288 55.60%
288 220 42.47%
WhT? 10 1.93%
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Old 04-14-2011, 06:41 AM   #301
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Re: 48÷2(9+3)=?????

Its definitely 2.
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  • Old 04-14-2011, 06:44 AM   #302
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by Jake View Post
    it's not 48 / 2 * 12, it's 48 / (whatever 2 * 12 is)


    because the 2(9+3) are the same number, that sides math must be done before you divide the number.

    2*12 = 24
    48/24 = 2
    Quote:
    Originally Posted by YouNeverKnow25 View Post
    Exactly. The parentheses doesn't just go away because you added 9 and 3. They remain in there as 12.
    Bottom line is that it is a poorly written equation. My initial reaction was that it was 2. However, 2(9+3) implies that there is a mulitplication sign after the 2, which would be 2 * (9+3), so then 2 * (12). Putting that in the equation leaves 48 / 2 * 12...or 288.
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    Old 04-14-2011, 06:44 AM   #303
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by YouNeverKnow25 View Post
    Exactly. The parentheses doesn't just go away because you added 9 and 3. They remain in there as 12.
    but an number next to parentheses mean......multiply. which would need to be done after division according to order of operations.
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    Old 04-14-2011, 06:44 AM   #304
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    Re: 48÷2(9+3)=?????

    48÷2(9+3)=?????

    can be rewritten as:

    48÷2x(9+3)=

    parenthesis first makes it:

    48÷2x12=
    YOU DO MULTIPLICATION AND DIVISION FROM LEFT TO RIGHT.
    24x12=288
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    Old 04-14-2011, 06:45 AM   #305
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by Haiku Jimi View Post
    Hrrmmmmm?



    Ok, if it's 2(12) it still doesn't matter. The division on the left comes first anyway. You only do what's inside parenthesis first.
    that may be the case, but I haven't had math for 20 years. I thought you did "sides" of an equation first, and then did the 2 sides together.
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    Old 04-14-2011, 06:45 AM   #306
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by Jake View Post
    it's not 48 / 2 * 12, it's 48 / (whatever 2 * 12 is)


    because the 2(9+3) are the same number, that sides math must be done before you divide the number.

    2*12 = 24
    48/24 = 2
    This.

    You know the world is fucked when opinion is creeping its way into math.
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    Old 04-14-2011, 06:45 AM   #307
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by Beebz View Post
    Its definitely 2.
    omg it's not 2 and I suck at math
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    Old 04-14-2011, 06:46 AM   #308
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by pagoda View Post
    Bottom line is that it is a poorly written equation. My initial reaction was that it was 2. However, 2(9+3) implies that there is a mulitplication sign after the 2, which would be 2 * (9+3), so then 2 * (12). Putting that in the equation leaves 48 / 2 * 12...or 288.
    I believe this to be the chosen answer.
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    Old 04-14-2011, 06:46 AM   #309
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by Beebz View Post
    This.

    You know the world is fucked when opinion is creeping its way into math.
    There's no opinion involved. There's the right way to do the problem, and the wrong way. The wrong way gets you 2. The correct way gets you 288.
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    Old 04-14-2011, 06:51 AM   #310
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by proppenator View Post
    The creator of AM.org is trolling his own website. This site is fucked.
    lulz I was thinking the same thing.
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    Old 04-14-2011, 06:52 AM   #311
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    Re: 48÷2(9+3)=?????

    I think it's kind of funny how worked up people are getting over this.
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    Old 04-14-2011, 06:53 AM   #312
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by Bohrman26 View Post
    I think it's kind of funny how worked up people are getting over this.
    So does Brohan Santana, because that's the exact reason he created the thread in the first place.
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    Old 04-14-2011, 06:58 AM   #313
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by YouNeverKnow25 View Post
    So does Brohan Santana, because that's the exact reason he created the thread in the first place.
    I think the real reason he created it was because he kept getting 4 and so he googled it and found both 2 and 288 as possible answers. Kids a dumbass
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    Old 04-14-2011, 07:05 AM   #314
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    Re: 48÷2(9+3)=?????

    Period 4- PreAlg
    2= 2students
    288= 11 students
    I subtracted instead of adding and got 144= 1 student
    I hate math= 5 students.
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    Originally Posted by k270 View Post
    Next time DMB plays Warehouse, instead of the "Woooos", maybe all should chant "Hey Zeus"
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    Old 04-14-2011, 07:08 AM   #315
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    Re: 48÷2(9+3)=?????

    It's 2.

    There are only 2 pieces to this equation.

    The first is 48.

    The second is 2(9+3) because it is considered one whole.

    The equation should be read as A÷B=C, where A = 48 and B = 2(9+3) and C is the unknown.

    Sooo...

    1. Calculate B

    B = 2(9+3) = 2(12) = 24

    2. Calculate A

    A = 48

    3. Solve

    48 ÷ 24 = 2
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    Old 04-14-2011, 07:11 AM   #316
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by dmb27364041 View Post
    It's 2.

    There are only 2 pieces to this equation.

    The first is 48.

    The second is 2(9+3) because it is considered one whole.

    The equation should be read as A÷B=C, where A = 48 and B = 2(9+3) and C is the unknown.

    Sooo...

    1. Calculate B

    B = 2(9+3) = 2(12) = 24

    2. Calculate A

    A = 48

    3. Solve

    48 ÷ 24 = 2
    Not necessarily. 2(9+3) implies 2 x (9+3), which gives the equation 3 parts.

    For what it's worth, the TI-89, when entered exactly as "48/2(9+3)", says the answer is 288.
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    Old 04-14-2011, 07:12 AM   #317
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by dmb27364041 View Post
    It's 2.

    There are only 2 pieces to this equation.

    The first is 48.

    The second is 2(9+3) because it is considered one whole.

    The equation should be read as A÷B=C, where A = 48 and B = 2(9+3) and C is the unknown.

    Sooo...

    1. Calculate B

    B = 2(9+3) = 2(12) = 24

    2. Calculate A

    A = 48

    3. Solve

    48 ÷ 24 = 2
    there's your mistake.

    also...hilarious that beebz and jake agree on something.....and they are both wrong.

    lolz
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    Old 04-14-2011, 07:15 AM   #318
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by AJF_41 View Post
    there's your mistake.

    also...hilarious that beebz and jake agree on something.....and they are both wrong.

    lolz
    Throw me in with that group, too.

    It has been several years, but I thought the 2(9+3) is 1 number that you have to solve for FIRST before you can even consider the 48 / ....

    It isn't written as
    (48 ÷ 2) * (9 + 3)

    That answer is clearly 288.

    I thought you had to solve 2(9+3) before you worry about all other parts of the problem? Did math change in the past 15 years? I really thought you had to answer that part first to get that number before you could carry on with the rest.

    Again, I haven't taken a straight math class since high school.
    Tested out of college courses. Apparently, I shouldn't have.
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    Old 04-14-2011, 07:18 AM   #319
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by dmb27364041 View Post
    It's 2.

    There are only 2 pieces to this equation.

    The first is 48.

    The second is 2(9+3) because it is considered one whole.

    The equation should be read as A÷B=C, where A = 48 and B = 2(9+3) and C is the unknown.

    Sooo...

    1. Calculate B

    B = 2(9+3) = 2(12) = 24

    2. Calculate A

    A = 48

    3. Solve

    48 ÷ 24 = 2
    not sure if srs
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    Old 04-14-2011, 07:20 AM   #320
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by Crush086 View Post
    not sure if srs
    On the internet? Srs.
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    Old 04-14-2011, 07:21 AM   #321
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by mandy18 View Post
    Throw me in with that group, too.

    It has been several years, but I thought the 2(9+3) is 1 number that you have to solve for FIRST before you can even consider the 48 / ....

    It isn't written as
    (48 ÷ 2) * (9 + 3)

    That answer is clearly 288.

    I thought you had to solve 2(9+3) before you worry about all other parts of the problem? Did math change in the past 15 years? I really thought you had to answer that part first to get that number before you could carry on with the rest.

    Again, I haven't taken a straight math class since high school.
    Tested out of college courses. Apparently, I shouldn't have.
    You can't add the () around the 48 ÷ 2, as that simplifies everything. It technically is written as 48 ÷ 2 * (9+3) because that's what 2(9+3) is saying, it's just a shorthand way to write 2 * (9+3).

    Now, what if you distribute the 2 throughout the () first? Then you have 48 ÷ (18+6), or 48 ÷ 24. I don't think that is following order of operations though.
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    Old 04-14-2011, 07:21 AM   #322
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    Re: 48÷2(9+3)=?????

    So if you put an airplane on a treadmill......
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    Old 04-14-2011, 07:22 AM   #323
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    Re: 48÷2(9+3)=?????

    Mythbusters disproved that.
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    Old 04-14-2011, 07:24 AM   #324
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    Re: 48÷2(9+3)=?????

    I posted this equation on twitter.

    Already got one response of 2 and my husband said 36

    Edit: nevermind he was joking
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    Last edited by courtzdmb; 04-14-2011 at 07:27 AM.
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    Old 04-14-2011, 07:24 AM   #325
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by pagoda View Post
    You can't add the () around the 48 ÷ 2, as that simplifies everything. It technically is written as 48 ÷ 2 * (9+3) because that's what 2(9+3) is saying, it's just a shorthand way to write 2 * (9+3).

    Now, what if you distribute the 2 throughout the () first? Then you have 48 ÷ (18+6), or 48 ÷ 24. I don't think that is following order of operations though.
    I didn't.
    Google does.

    If you type 48÷2(9+3)= into google, the answer will appear as
    (48 ÷ 2) * (9 + 3) = 288
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    Old 04-14-2011, 07:26 AM   #326
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    Quote:
    Originally Posted by pagoda View Post
    Now, what if you distribute the 2 throughout the () first? Then you have 48 ÷ (18+6), or 48 ÷ 24. I don't think that is following order of operations though.
    You can't do that; you would need to distribute 48/2.
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    Old 04-14-2011, 07:26 AM   #327
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by mandy18 View Post
    I didn't.
    Google does.

    If you type 48÷2(9+3)= into google, the answer will appear as
    (48 ÷ 2) * (9 + 3) = 288
    you mean google does it right?
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    Old 04-14-2011, 07:26 AM   #328
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by proppenator View Post
    You can't do that; you would need to distribute 48/2.


    win.
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    Old 04-14-2011, 07:26 AM   #329
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by pagoda View Post
    Not necessarily. 2(9+3) implies 2 x (9+3), which gives the equation 3 parts.

    For what it's worth, the TI-89, when entered exactly as "48/2(9+3)", says the answer is 288.
    enter 1/2pi in your calculator, and see if it treats it as 1/(2pi) or (1/2)pi. bet money it gives you 1.57. but logically, if you wanted (1/2)pi, you would input .5pi or pi/2, not 1/2pi. be smarter than the calculator.
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    Old 04-14-2011, 07:27 AM   #330
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    Re: 48÷2(9+3)=?????

    Quote:
    Originally Posted by mandy18 View Post
    Throw me in with that group, too.

    It has been several years, but I thought the 2(9+3) is 1 number that you have to solve for FIRST before you can even consider the 48 / ....

    It isn't written as
    (48 ÷ 2) * (9 + 3)

    That answer is clearly 288.

    I thought you had to solve 2(9+3) before you worry about all other parts of the problem? Did math change in the past 15 years? I really thought you had to answer that part first to get that number before you could carry on with the rest.

    Again, I haven't taken a straight math class since high school.
    Tested out of college courses. Apparently, I shouldn't have.
    Yeah, this is my understanding. You solve the 2(9+3) section first.
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