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Originally posted by SpookyVince
Kalisdad, NO. It is clear that it is not x + (1/2) x = x.
Originally posted by Wildmanimal
reply to post by billb1215
By The way,,,Dyson,Oreck,and Electrolux have made a fortune with this concept.
You forgot the government;
Originally posted by demonseed
What number + 1/2 would equal itself again?
(not half of itself, just 1/2)
half life — symbol t1/2 — the time taken for the activity of a given amount of a radioactive substance to decay to half of its initial value.
Originally posted by SpookyVince
Kalisdad, NO. It is clear that it is not x + (1/2) x = x.
Now there's something.
Adding doesn't necessarily means "to perform the mathematical addition".
So: instead of "additioning" let's simply "add" (collate, stick to) 1/2 to 2/4. This needs to be seen with horizontal fraction bars:
2 1
- -
4 2
That would be 2/4 "+" 1/2 -> 21/42 wich is still 1/2.
Originally posted by catlantis
reply to post by Danbones
half life function on exponential decay and I believe needs differential equations to solve, which on the face of it is not our standard and abilian concept of the operator +.
Again, what is + in all this? Assumptions have to be stated.
Originally posted by Bkrmn
How about this one:
Three guys rent a motel room for $30.00 . Thinking they paid too much, the desk clerk gives the bellhop $5.00 to give back to the three guys. Instead the bellhop decides to keep $2.00 for himself, and gives the guys back $3.00 . So now instead of paying $10.00 for the room, each has now paid $9.00 .
3 X $9.00 = $27.00 + $2.00 the bellhop kept = $29.00 . Where is the other $1.00 ?