When you ask "What number is halfway between 79 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=79 and Y=389.
To find the number halfway between 79 and 389, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 79 and 389 into our formula, we get:
(79 + 389)/2 = 234
Thus, the number halfway between 79 and 389 is 234.
To check that our answer is correct, we subtract 79 from 234 and subtract 234 from 389 and compare the two numbers:
234 - 79 = 155
389 - 234 = 155
As you can see, the halfway number is 155 higher than 79 and 155 lower than 389. Therefore, our halfway between answer of 234 above is correct.
Halfway Between
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Halfway Between 79 and 390
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