When you ask "What number is halfway between 28 and 69?" 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=69.
To find the number halfway between 28 and 69, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 28 and 69 into our formula, we get:
(28 + 69)/2 = 48.5
Thus, the number halfway between 28 and 69 is 48.5.
To check that our answer is correct, we subtract 28 from 48.5 and subtract 48.5 from 69 and compare the two numbers:
48.5 - 28 = 20.5
69 - 48.5 = 20.5
As you can see, the halfway number is 20.5 higher than 28 and 20.5 lower than 69. Therefore, our halfway between answer of 48.5 above is correct.
Halfway Between
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Halfway Between 28 and 70
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