When you ask "What number is halfway between 28 and 727?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=28 and Y=727.
To find the number halfway between 28 and 727, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 28 and 727 into our formula, we get:
(28 + 727)/2 = 377.5
Thus, the number halfway between 28 and 727 is 377.5.
To check that our answer is correct, we subtract 28 from 377.5 and subtract 377.5 from 727 and compare the two numbers:
377.5 - 28 = 349.5
727 - 377.5 = 349.5
As you can see, the halfway number is 349.5 higher than 28 and 349.5 lower than 727. Therefore, our halfway between answer of 377.5 above is correct.
Halfway Between
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