When you ask "What number is halfway between 20 and 349?" 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=349.
To find the number halfway between 20 and 349, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 20 and 349 into our formula, we get:
(20 + 349)/2 = 184.5
Thus, the number halfway between 20 and 349 is 184.5.
To check that our answer is correct, we subtract 20 from 184.5 and subtract 184.5 from 349 and compare the two numbers:
184.5 - 20 = 164.5
349 - 184.5 = 164.5
As you can see, the halfway number is 164.5 higher than 20 and 164.5 lower than 349. Therefore, our halfway between answer of 184.5 above is correct.
Halfway Between
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Halfway Between 20 and 350
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