When you ask "What number is halfway between 20 and 379?" 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=379.
To find the number halfway between 20 and 379, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 20 and 379 into our formula, we get:
(20 + 379)/2 = 199.5
Thus, the number halfway between 20 and 379 is 199.5.
To check that our answer is correct, we subtract 20 from 199.5 and subtract 199.5 from 379 and compare the two numbers:
199.5 - 20 = 179.5
379 - 199.5 = 179.5
As you can see, the halfway number is 179.5 higher than 20 and 179.5 lower than 379. Therefore, our halfway between answer of 199.5 above is correct.
Halfway Between
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Halfway Between 20 and 380
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