When you ask "What number is halfway between 74 and 389?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=74 and Y=389.
To find the number halfway between 74 and 389, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 74 and 389 into our formula, we get:
(74 + 389)/2 = 231.5
Thus, the number halfway between 74 and 389 is 231.5.
To check that our answer is correct, we subtract 74 from 231.5 and subtract 231.5 from 389 and compare the two numbers:
231.5 - 74 = 157.5
389 - 231.5 = 157.5
As you can see, the halfway number is 157.5 higher than 74 and 157.5 lower than 389. Therefore, our halfway between answer of 231.5 above is correct.
Halfway Between
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Halfway Between 74 and 390
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