When you ask "What number is halfway between 84 and 747?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=84 and Y=747.
To find the number halfway between 84 and 747, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 84 and 747 into our formula, we get:
(84 + 747)/2 = 415.5
Thus, the number halfway between 84 and 747 is 415.5.
To check that our answer is correct, we subtract 84 from 415.5 and subtract 415.5 from 747 and compare the two numbers:
415.5 - 84 = 331.5
747 - 415.5 = 331.5
As you can see, the halfway number is 331.5 higher than 84 and 331.5 lower than 747. Therefore, our halfway between answer of 415.5 above is correct.
Halfway Between
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Halfway Between 84 and 748
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