It is: 2*0.5*2.5 = 2.5
Two and a half, surely.
No, half of twice is once.
pizza pie
No, you press the beat once in a half note, but you hold it for two beats.
It's not half as much, it is twice as much. And it is twice as much, precisely because 2/3 is twice as much as 1/3.
The first has half the wavelength of the second
Half of 50 is 25 and twice of that is 50. So 50.
1 and a 1/2
Something that occurs TWICE a month is called SEMI monthly (semi=half) and something that occurs every TWO months is called BI-Monthly (BI=TWO)
12 because 12 + 2 = 14. 12 - 5 = 7, which is half of 14. So in two years you will be twice as old as you are now.
There is no special day for half-brothers, much less for half-brothers twice removed (a relationship name that has no meaning).
After 2 half-lives, you would have 25% of the original amount remaining. Each half-life reduces the amount by half, so after two half-lives, you would have 25% left (50% reduced by half twice).