1.05
It is 0.05 more than 1.00 and 0.05 less than 1.10
To find a halfway point (which is also the average), add the numbers together and divide by 2.
15
11
13
11.. 7+4=11 and 15-4=11
Since 10 squared is 100, and 11 squared is 121, the square root of any number between 100 and 121 will be between 10 and 11.
the halfway point is 10.5 or 10 and a half
There is no "the" rational" number since there is an infinity of them. Start with the number halfway between the two: (1/10+1/11)/2 = 21/220. Then try halfway between 1/10 and 21/220, and then halfway between 1/10 and that on. And so on.
15
11
13
It is 13
the number between 2 and 20 is 11
8
The number 8 is halfway between 5 and 11. It is 3 more than 5 and 3 less than 11. To find a halfway point (which is also the average), add the numbers together and divide by 2.
It is (10.7 + 11)/2 = 10.85
It is 47, the number halfway between the two of them.
11.. 7+4=11 and 15-4=11