When you ask "What number is halfway between 78 and 293?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=78 and Y=293.
To find the number halfway between 78 and 293, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 78 and 293 into our formula, we get:
(78 + 293)/2 = 185.5
Thus, the number halfway between 78 and 293 is 185.5.
To check that our answer is correct, we subtract 78 from 185.5 and subtract 185.5 from 293 and compare the two numbers:
185.5 - 78 = 107.5
293 - 185.5 = 107.5
As you can see, the halfway number is 107.5 higher than 78 and 107.5 lower than 293. Therefore, our halfway between answer of 185.5 above is correct.
Halfway Between
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Halfway Between 78 and 294
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