When you ask "What number is halfway between 77 and 176?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=77 and Y=176.
To find the number halfway between 77 and 176, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 77 and 176 into our formula, we get:
(77 + 176)/2 = 126.5
Thus, the number halfway between 77 and 176 is 126.5.
To check that our answer is correct, we subtract 77 from 126.5 and subtract 126.5 from 176 and compare the two numbers:
126.5 - 77 = 49.5
176 - 126.5 = 49.5
As you can see, the halfway number is 49.5 higher than 77 and 49.5 lower than 176. Therefore, our halfway between answer of 126.5 above is correct.
Halfway Between
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Halfway Between 77 and 177
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