When you ask "What number is halfway between 30 and 929?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=30 and Y=929.
To find the number halfway between 30 and 929, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 30 and 929 into our formula, we get:
(30 + 929)/2 = 479.5
Thus, the number halfway between 30 and 929 is 479.5.
To check that our answer is correct, we subtract 30 from 479.5 and subtract 479.5 from 929 and compare the two numbers:
479.5 - 30 = 449.5
929 - 479.5 = 449.5
As you can see, the halfway number is 449.5 higher than 30 and 449.5 lower than 929. Therefore, our halfway between answer of 479.5 above is correct.
Halfway Between
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Halfway Between 30 and 930
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