Interesting debate on physics.com
What's your the answer?
48/2(9+3)
Interesting debate on physics.com
What's your the answer?
48/2(9+3)
I will make my guess as 288. I'm sure it's much more complicated than that though. But, hey, I did get a C+ in trigonometery back in the day.
Has to be 288.
To avoid criticism say nothing, do nothing, be nothing.
288 fo sho...
This could be 2 different answers depending on how you see it.
48
--- (9+3) = 288
2
However if you see if as:
48
---------- = 2
2 (9+3)
hard to tell which way it is expressing it.
BRUTUS BUCKEYE WILL TAKE YOU DOWN...
PEDMAS is the order of operation. Parentheses, Exponents, Division, Multiplication, Addition, Subtraction. 48/2(9+3) becomes 48/2(12). Next step is division (there are no exponents) so our problem becomes 24(12). The last step (for this problem) is the multiplication, so the answer is 288.
Jeez, guys, it's only been 45 years since high school algebra. It seems like it was just yesterday. Of course, I can't remember what I had for breakfast . . . .
R.I.P. Cyrano and Roxanne.
Hi M Richardson.
Regarding PEDMAS, isn't it actually parenthethis, exponents, then (moving left to right in arrival sequence) multiplication or division then (moving left to right in arrival sequence) addition or subtraction.
Since multiplication and division are at the same level and addition and subtraction are at the same (but lower) level, PEDMAS could be PEDMSA or PEMDAS or PEMDSA?
You are on the right track. Maybe in Ohio we did things different. I never heard of Pedmas while attending Cleveland Schools. Or if I had heard of it, I immediately forgot it, maybe considering it as something superfluous.
Your:
48
--- (9+3) = 288
2
May also be expressed as
48 (9+3)
--- = 288
2
I know I did that type of simplification countless times.
================================
Taking the problem at hand, lets switch 48/2(9+3) to 48(9+3)/2.
According to the presented PEDMAS procedure, 48(9+3)/2 becomes 48(12)/2. Next step is division (there are no exponents) so our problem becomes 48(6). The last step (for this problem) is the multiplication, so the answer is 288.
Question: how can 48/2(9+3) and 48(9+3)/2 both be equal to 288?
Answer: because the (9+3) is consider part of the dividend in both division problems.
Real question:
If it is my intent that the (9+3) be part of the DIVISOR how do I express that so that a quotient of 2 becomes the correct answer? We already see that whppetgrappler has shown it with his second expression.
I know that I would have
48/2(9+3)=2
and 48/2*(9+3)=288
I know that simplification was one of my key tasks in math. Is Pedmas something that occurs AFTER simplification of divisors and dividends?
DSCH: a Soviet artist's reply to unjust criticism.