When you ask "What number is halfway between 49 and 122?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=49 and Y=122.
To find the number halfway between 49 and 122, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 49 and 122 into our formula, we get:
(49 + 122)/2 = 85.5
Thus, the number halfway between 49 and 122 is 85.5.
To check that our answer is correct, we subtract 49 from 85.5 and subtract 85.5 from 122 and compare the two numbers:
85.5 - 49 = 36.5
122 - 85.5 = 36.5
As you can see, the halfway number is 36.5 higher than 49 and 36.5 lower than 122. Therefore, our halfway between answer of 85.5 above is correct.
Halfway Between
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Halfway Between 49 and 123
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