When you ask "What number is halfway between 8 and 47?" 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=47.
To find the number halfway between 8 and 47, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 47 into our formula, we get:
(8 + 47)/2 = 27.5
Thus, the number halfway between 8 and 47 is 27.5.
To check that our answer is correct, we subtract 8 from 27.5 and subtract 27.5 from 47 and compare the two numbers:
27.5 - 8 = 19.5
47 - 27.5 = 19.5
As you can see, the halfway number is 19.5 higher than 8 and 19.5 lower than 47. Therefore, our halfway between answer of 27.5 above is correct.
Halfway Between
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Halfway Between 8 and 48
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