When you ask "What number is halfway between 69 and 180?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=69 and Y=180.
To find the number halfway between 69 and 180, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 69 and 180 into our formula, we get:
(69 + 180)/2 = 124.5
Thus, the number halfway between 69 and 180 is 124.5.
To check that our answer is correct, we subtract 69 from 124.5 and subtract 124.5 from 180 and compare the two numbers:
124.5 - 69 = 55.5
180 - 124.5 = 55.5
As you can see, the halfway number is 55.5 higher than 69 and 55.5 lower than 180. Therefore, our halfway between answer of 124.5 above is correct.
Halfway Between
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Halfway Between 69 and 181
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