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masraum masraum is online now
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Join Date: Oct 2001
Location: Central TX west of Houston
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Quote:
Originally Posted by Bill Verburg View Post
there are certainly a lot of students and ex students that are/were mediocre at best in math

to force the x before the ÷ in the above it would have to be in parenthesis
48 ÷ (2(12))

similarly
48 / 2 x 12 is not the same as 48 / (2 x 12)
You know that. I know that, and about 35% of the guys on Pelican know that. The guys that really need convincing are these two.

Quote:
Originally Posted by wdfifteen View Post
One SHOULD interpret the equation in the conventional way. The convention used in EVERY math course, EVERY physics course, and EVERY engineering course I (or anyone else) has ever taken is that you do the implied multiplication or division on a parenthetical term immediately after you perform the work inside the parenthesis.
To an engineer the intent of the calculation 48/2*9+3 is ambiguous. The intent of 48/2(9+3) is clear as a bell. Everything to the left of the division sign is in the numerator, everything to the right is in the denominator.


Quote:
Originally Posted by romad View Post
2(9+3) is one term. the parenthesis do not drop off after you work 9+3

so 48/2(9+3)
48/2(12)
48/24
2

Quote:
Originally Posted by wdfifteen View Post
Quote:
You changed the problem from 48÷2(9+3) = ?? to 48÷(2(9+3)) = ??

Sheesh.
Those are the same problem.
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Last edited by masraum; 04-13-2011 at 07:55 PM..
Old 04-13-2011, 07:24 PM
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