When you ask "What number is halfway between 49 and 220?" 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=220.
To find the number halfway between 49 and 220, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 49 and 220 into our formula, we get:
(49 + 220)/2 = 134.5
Thus, the number halfway between 49 and 220 is 134.5.
To check that our answer is correct, we subtract 49 from 134.5 and subtract 134.5 from 220 and compare the two numbers:
134.5 - 49 = 85.5
220 - 134.5 = 85.5
As you can see, the halfway number is 85.5 higher than 49 and 85.5 lower than 220. Therefore, our halfway between answer of 134.5 above is correct.
Halfway Between
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Halfway Between 49 and 221
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