When you ask "What number is halfway between 8 and 29?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=8 and Y=29.
To find the number halfway between 8 and 29, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 29 into our formula, we get:
(8 + 29)/2 = 18.5
Thus, the number halfway between 8 and 29 is 18.5.
To check that our answer is correct, we subtract 8 from 18.5 and subtract 18.5 from 29 and compare the two numbers:
18.5 - 8 = 10.5
29 - 18.5 = 10.5
As you can see, the halfway number is 10.5 higher than 8 and 10.5 lower than 29. Therefore, our halfway between answer of 18.5 above is correct.
Halfway Between
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Halfway Between 8 and 30
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