When you ask "What number is halfway between 30 and 749?" 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=749.
To find the number halfway between 30 and 749, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 30 and 749 into our formula, we get:
(30 + 749)/2 = 389.5
Thus, the number halfway between 30 and 749 is 389.5.
To check that our answer is correct, we subtract 30 from 389.5 and subtract 389.5 from 749 and compare the two numbers:
389.5 - 30 = 359.5
749 - 389.5 = 359.5
As you can see, the halfway number is 359.5 higher than 30 and 359.5 lower than 749. Therefore, our halfway between answer of 389.5 above is correct.
Halfway Between
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Halfway Between 30 and 750
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