When you ask "What number is halfway between 10 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=10 and Y=47.
To find the number halfway between 10 and 47, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 10 and 47 into our formula, we get:
(10 + 47)/2 = 28.5
Thus, the number halfway between 10 and 47 is 28.5.
To check that our answer is correct, we subtract 10 from 28.5 and subtract 28.5 from 47 and compare the two numbers:
28.5 - 10 = 18.5
47 - 28.5 = 18.5
As you can see, the halfway number is 18.5 higher than 10 and 18.5 lower than 47. Therefore, our halfway between answer of 28.5 above is correct.
Halfway Between
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Halfway Between 10 and 48
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