When you ask "What number is halfway between 77 and 94?" 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=94.
To find the number halfway between 77 and 94, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 77 and 94 into our formula, we get:
(77 + 94)/2 = 85.5
Thus, the number halfway between 77 and 94 is 85.5.
To check that our answer is correct, we subtract 77 from 85.5 and subtract 85.5 from 94 and compare the two numbers:
85.5 - 77 = 8.5
94 - 85.5 = 8.5
As you can see, the halfway number is 8.5 higher than 77 and 8.5 lower than 94. Therefore, our halfway between answer of 85.5 above is correct.
Halfway Between
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Halfway Between 77 and 95
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