When you ask "What number is halfway between 97 and 172?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=97 and Y=172.
To find the number halfway between 97 and 172, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 97 and 172 into our formula, we get:
(97 + 172)/2 = 134.5
Thus, the number halfway between 97 and 172 is 134.5.
To check that our answer is correct, we subtract 97 from 134.5 and subtract 134.5 from 172 and compare the two numbers:
134.5 - 97 = 37.5
172 - 134.5 = 37.5
As you can see, the halfway number is 37.5 higher than 97 and 37.5 lower than 172. Therefore, our halfway between answer of 134.5 above is correct.
Halfway Between
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Halfway Between 97 and 173
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