When you ask "What number is halfway between 20 and 949?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=20 and Y=949.
To find the number halfway between 20 and 949, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 20 and 949 into our formula, we get:
(20 + 949)/2 = 484.5
Thus, the number halfway between 20 and 949 is 484.5.
To check that our answer is correct, we subtract 20 from 484.5 and subtract 484.5 from 949 and compare the two numbers:
484.5 - 20 = 464.5
949 - 484.5 = 464.5
As you can see, the halfway number is 464.5 higher than 20 and 464.5 lower than 949. Therefore, our halfway between answer of 484.5 above is correct.
Halfway Between
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Halfway Between 20 and 950
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