When you ask "What number is halfway between 8 and 73?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=8 and Y=73.
To find the number halfway between 8 and 73, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 8 and 73 into our formula, we get:
(8 + 73)/2 = 40.5
Thus, the number halfway between 8 and 73 is 40.5.
To check that our answer is correct, we subtract 8 from 40.5 and subtract 40.5 from 73 and compare the two numbers:
40.5 - 8 = 32.5
73 - 40.5 = 32.5
As you can see, the halfway number is 32.5 higher than 8 and 32.5 lower than 73. Therefore, our halfway between answer of 40.5 above is correct.
Halfway Between
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Halfway Between 8 and 74
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