When you ask "What number is halfway between 30 and 369?" 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=369.
To find the number halfway between 30 and 369, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 30 and 369 into our formula, we get:
(30 + 369)/2 = 199.5
Thus, the number halfway between 30 and 369 is 199.5.
To check that our answer is correct, we subtract 30 from 199.5 and subtract 199.5 from 369 and compare the two numbers:
199.5 - 30 = 169.5
369 - 199.5 = 169.5
As you can see, the halfway number is 169.5 higher than 30 and 169.5 lower than 369. Therefore, our halfway between answer of 199.5 above is correct.
Halfway Between
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Halfway Between 30 and 370
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