When you ask "What number is halfway between 71 and 127?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=71 and Y=127.
To find the number halfway between 71 and 127, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 71 and 127 into our formula, we get:
(71 + 127)/2 = 99
Thus, the number halfway between 71 and 127 is 99.
To check that our answer is correct, we subtract 71 from 99 and subtract 99 from 127 and compare the two numbers:
99 - 71 = 28
127 - 99 = 28
As you can see, the halfway number is 28 higher than 71 and 28 lower than 127. Therefore, our halfway between answer of 99 above is correct.
Halfway Between
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Halfway Between 71 and 128
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