Your case is over, you lost for this one
48÷2(9+3) = ????
- Thread starter nubian
- Start date
Your case is over, you lost for this one
The Order of Operations proves its 2.
You do this before you do anything...
2(9+3)
2(12)
24
Then 48 ÷ 24 = 2.
You cant go 48 ÷ 2 because the 2 belongs to the Parenthesis since their is nothing between the two..
Answer is 2. Nothing to even discuss here further...
yea u work it from left to right
48 divided by 2(12)=2
you have to solve everything dealing with the PARENTHESIS before you can move on...
Yea, when you start with Parenthesis, you must finish the operation. You really should take a basic math class at a local community college to try to grasp the concept(s). I know wtf I'm doing. I practically do this shit for a living. The answer is 2.
288
Pretty much. The 2 belongs to the Parenthesis when there is nothing in between them. You can not divide the 48 by the 2 because you haven't finished solving the Parenthesis, and the numbers that it owns.
Yep. That is THE fundamental problem here.
This has been mentioned 1000 times in the thread. I forgot that my damn self until I came in this thread.
You ONLY solve what's INSIDE the parentheses, NOTHING MORE!
The answer is right here fellas, what ya'll are doing wrong is in here as well!
A common technique for remembering the order of operations is the abbreviation "PEMDAS", which is turned into the phrase "Please Excuse My Dear Aunt Sally". It stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction". This tells you the ranks of the operations: Parentheses outrank exponents, which outrank multiplication and division (but multiplication and division are at the same rank), and these two outrank addition and subtraction (which are together on the bottom rank). When you have a bunch of operations of the same rank, you just operate from left to right. For instance, 15 ÷ 3 × 4 is not 15 ÷ 12, but is rather 5 × 4, because, going from left to right, you get to the division first. If you're not sure of this, test it in your calculator, which has been programmed with the Order of Operations hierarchy.
I'm with you playa
Then you two fail together. My little brother who's in the 9th grade and taking algebra right now got 288.
Rule 1: First perform any calculations inside parentheses.
Rule 2: Next perform all multiplications and divisions, working from left to right.
Rule 3: Lastly, perform all additions and subtractions, working from left to right.
Example 3: Evaluate 9 - 5 ÷ (8 - 3) x 2 + 6 using the order of operations.
Solution: Step 1: 9 - 5 ÷ (8 - 3) x 2 + 6 = 9 - 5 ÷ 5 x 2 + 6 Parentheses
Step 2: 9 - 5 ÷ 5 x 2 + 6 = 9 - 1 x 2 + 6 Division
Step 3: 9 - 1 x 2 + 6 = 9 - 2 + 6 Multiplication
Step 4: 9 - 2 + 6 = 7 + 6 Subtraction
Step 5: 7 + 6 = 13 Addition
In Examples 2 and 3, you will notice that multiplication and division were evaluated from left to right according to Rule 2. Similarly, addition and subtraction were evaluated from left to right, according to Rule 3.
When two or more operations occur inside a set of parentheses, these operations should be evaluated according to Rules 2 and 3. This is done in Example 4 below.
Example 4: Evaluate 150 ÷ (6 + 3 x 8) - 5 using the order of operations.
Solution: Step 1: 150 ÷ (6 + 3 x 8) - 5 = 150 ÷ (6 + 24) - 5 Multiplication inside Parentheses
Step 2: 150 ÷ (6 + 24) - 5 = 150 ÷ 30 - 5 Addition inside Parentheses
Step 3: 150 ÷ 30 - 5 = 5 - 5 Division
Step 4: 5 - 5 = 0 Subtraction
http://www.mathgoodies.com/Lessons/vol7/order_operations.html
No Parenthesis here. Totally different problem...
Once you start the parenthesis you have to finish them. It's not done after 9+3. After that you multiply by the 2. It's basically considered part of the operation. Ur skipping the operation and moving on. Thats a crucial error. Our school system must suck.
your little brother is on his way to head fry boy at mcdonalds
go put it in a scientific calculator.....
This is the mistake, the rules specifically state IN the parenthesis, not around, next to or anything owned by them!
Read:
* In Mathematics, the order in which mathematical problems are solved is extremely important.
Rules
1. Calculations must be done from left to right.
2. Calculations in brackets (parenthesis) are done first. When you have more than one set of brackets, do the inner brackets first.
3. Exponents (or radicals) must be done next.
4. Multiply and divide in the order the operations occur.
5. Add and subtract in the order the operations occur.
Heres why its 288
Using the example and references below
48÷2(9+3)=48/2(9+3)
48/2(9+3) The expression inside parentheses is evaluated first
=48/2(12) READ IT OUTLOUD "Forty-eight divided by two multiplied by 12"
So we have to decide whether we want to Divide first or Multiply first.
According to the rules:Multiplication and division are of equal precedence or same rank. When you have a bunch of operations of the same rank, you just operate from left to right/B]
So we divide first than multiply
=24(12)
=288
Let x = the cost
x = 1/2 ($5.00) - $2.00
x = $2.50 - $2.00
x = $0.50 or fifty cents
http://www.math.com/school/subject2/lessons/S2U1L3EX.html
Without the units, It would be easy to lose track of what the answer of .5 meant. Again, this is a simple example, but as things get more complicated, it's important to keep units straight.
A common technique for remembering the order of operations is the abbreviation "PEMDAS", which is turned into the phrase "Please Excuse My Dear Aunt Sally". It stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction". This tells you the ranks of the operations: Parentheses outrank exponents, which outrank multiplication and division (but multiplication and division are at the same rank), and these two outrank addition and subtraction (which are together on the bottom rank). When you have a bunch of operations of the same rank, you just operate from left to right. For instance, 15 ÷ 3 × 4 is not 15 ÷ 12, but is rather 5 × 4, because, going from left to right, you get to the division first. If you're not sure of this, test it in your calculator, which has been programmed with the Order of Operations hierarchy. For instance, typesetting this into a graphing calculator, you will get:
calculator screen-shot: 15 / 3 * 4 = 20
Using the above hierarchy, we see that, in the "4 + 2×3" question at the beginning of this article, Choice 2 was the correct answer, because we have to do the multiplication before the addition.
(Note: Speakers of British English often instead use "BODMAS", which stands for "Brackets, Orders, Division and Multiplication, and Addition and Subtraction". Since "brackets" are the same as parentheses and "orders" are the same as exponents, the two acronyms mean the same thing.)
http://www.purplemath.com/modules/orderops.htm
Mnemonics are often used to help students remember the rules, but the rules taught by the use of acronyms can be misleading. In Canada the acronym BEDMAS is common. It stands for Brackets, Exponents, Division, Multiplication, Addition, Subtraction. In other English speaking countries, Brackets may be called Parentheses, or symbols of inclusion and Exponentiation may be called either Indices, Powers or Orders, and since multiplication and division are of equal precedence, M and D are often interchanged, leading to such acronyms as BIMDAS, BODMAS, BOMDAS, BERDMAS, PERDMAS, PEMDAS, and BPODMAS.
These mnemonics may be misleading, especially if the user is not aware that multiplication and division are of equal precedence, as are addition and subtraction. Using any of the above rules in the order "addition first, subtraction afterward" would also give the wrong answer.
10 - 3 + 2 ,
The correct answer is 9, which is best understood by thinking of the problem as the sum of positive ten, negative three, and positive two.
http://en.wikipedia.org/wiki/Order_of_operations
Position within the expression is used to determine the order of evaluation when two or more operators share the same operator precedence. Consider the following:
A = 6 / 2 * 3
In this case, A equals 9, since the division operator is to the left of the multiplication operator. The subexpression 6 / 2 is evaluated before the multiplication is done, even though the multiplication and division operators have the same precedence. Again, parentheses can be used to override the default evaluation order:
A = 6 / (2 * 3)
In this case, A equals 1, because the expression inside parentheses is evaluated first.
A useful rule of thumb is, "when in doubt, parenthesize". Some examples of expressions are provided in the following table.
http://idlastro.gsfc.nasa.gov/idl_ht...recedence.html
Using the example and references below
48÷2(9+3)=48/2(9+3)
48/2(9+3) The expression inside parentheses is evaluated first
=48/2(12) READ IT OUTLOUD "Forty-eight divided by two multiplied by 12"
So we have to decide whether we want to Divide first or Multiply first.
According to the rules:Multiplication and division are of equal precedence or same rank. When you have a bunch of operations of the same rank, you just operate from left to right/B]
So we divide first than multiply
=24(12)
=288
Let x = the cost
x = 1/2 ($5.00) - $2.00
x = $2.50 - $2.00
x = $0.50 or fifty cents
http://www.math.com/school/subject2/lessons/S2U1L3EX.html
Without the units, It would be easy to lose track of what the answer of .5 meant. Again, this is a simple example, but as things get more complicated, it's important to keep units straight.
A common technique for remembering the order of operations is the abbreviation "PEMDAS", which is turned into the phrase "Please Excuse My Dear Aunt Sally". It stands for "Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction". This tells you the ranks of the operations: Parentheses outrank exponents, which outrank multiplication and division (but multiplication and division are at the same rank), and these two outrank addition and subtraction (which are together on the bottom rank). When you have a bunch of operations of the same rank, you just operate from left to right. For instance, 15 ÷ 3 × 4 is not 15 ÷ 12, but is rather 5 × 4, because, going from left to right, you get to the division first. If you're not sure of this, test it in your calculator, which has been programmed with the Order of Operations hierarchy. For instance, typesetting this into a graphing calculator, you will get:
calculator screen-shot: 15 / 3 * 4 = 20
Using the above hierarchy, we see that, in the "4 + 2×3" question at the beginning of this article, Choice 2 was the correct answer, because we have to do the multiplication before the addition.
(Note: Speakers of British English often instead use "BODMAS", which stands for "Brackets, Orders, Division and Multiplication, and Addition and Subtraction". Since "brackets" are the same as parentheses and "orders" are the same as exponents, the two acronyms mean the same thing.)
http://www.purplemath.com/modules/orderops.htm
Mnemonics are often used to help students remember the rules, but the rules taught by the use of acronyms can be misleading. In Canada the acronym BEDMAS is common. It stands for Brackets, Exponents, Division, Multiplication, Addition, Subtraction. In other English speaking countries, Brackets may be called Parentheses, or symbols of inclusion and Exponentiation may be called either Indices, Powers or Orders, and since multiplication and division are of equal precedence, M and D are often interchanged, leading to such acronyms as BIMDAS, BODMAS, BOMDAS, BERDMAS, PERDMAS, PEMDAS, and BPODMAS.
These mnemonics may be misleading, especially if the user is not aware that multiplication and division are of equal precedence, as are addition and subtraction. Using any of the above rules in the order "addition first, subtraction afterward" would also give the wrong answer.
10 - 3 + 2 ,
The correct answer is 9, which is best understood by thinking of the problem as the sum of positive ten, negative three, and positive two.
http://en.wikipedia.org/wiki/Order_of_operations
Position within the expression is used to determine the order of evaluation when two or more operators share the same operator precedence. Consider the following:
A = 6 / 2 * 3
In this case, A equals 9, since the division operator is to the left of the multiplication operator. The subexpression 6 / 2 is evaluated before the multiplication is done, even though the multiplication and division operators have the same precedence. Again, parentheses can be used to override the default evaluation order:
A = 6 / (2 * 3)
In this case, A equals 1, because the expression inside parentheses is evaluated first.
A useful rule of thumb is, "when in doubt, parenthesize". Some examples of expressions are provided in the following table.
http://idlastro.gsfc.nasa.gov/idl_ht...recedence.html
That's your problem right there calculator. This shit is basic math. D to the umb The example I just posted from mathgoodies.com shows you how to break down the problem. If you don't get it you never will. Everybody can't be smart or else dumb would exist. I know what side I'm on.
i just went and broke out the Texas instruments
answers equals 2
answers equals 2
You think you could just throw that in an 18 page thread like it hasn't been posted already?
My baby sisters both got 2. One is in High school at 13 and Harvard bound taking classes with Juniors and seniors with a 5.0 gpa. The other will be pretty much the same
Help your brother with his Math.
i did the problem in my head
after meaningless back and forth with nitwits such as urself,i went and broke out the scientific calculator for back up
answer is 2
i know what side your on too DUMB ASS
My baby sisters both got 2. One is in High school at 13 and Harvard bound taking classes with Juniors and seniors with a 5.0 gpa. The other will be pretty much the same
got his dumb ass brother thinking he Princeton bound and shit
You got a defective calculator.
For fuck's sake
Unfortunately ur bitch ass was right, black people are allergic to math
You niggas made me agree with my enemy. 
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