When you ask "What number is halfway between 31 and 159?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=31 and Y=159.
To find the number halfway between 31 and 159, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 31 and 159 into our formula, we get:
(31 + 159)/2 = 95
Thus, the number halfway between 31 and 159 is 95.
To check that our answer is correct, we subtract 31 from 95 and subtract 95 from 159 and compare the two numbers:
95 - 31 = 64
159 - 95 = 64
As you can see, the halfway number is 64 higher than 31 and 64 lower than 159. Therefore, our halfway between answer of 95 above is correct.
Halfway Between
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Halfway Between 31 and 160
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