When you ask "What number is halfway between 73 and 150?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=73 and Y=150.
To find the number halfway between 73 and 150, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 73 and 150 into our formula, we get:
(73 + 150)/2 = 111.5
Thus, the number halfway between 73 and 150 is 111.5.
To check that our answer is correct, we subtract 73 from 111.5 and subtract 111.5 from 150 and compare the two numbers:
111.5 - 73 = 38.5
150 - 111.5 = 38.5
As you can see, the halfway number is 38.5 higher than 73 and 38.5 lower than 150. Therefore, our halfway between answer of 111.5 above is correct.
Halfway Between
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Halfway Between 73 and 151
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