When you ask "What number is halfway between 69 and 549?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=69 and Y=549.
To find the number halfway between 69 and 549, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 69 and 549 into our formula, we get:
(69 + 549)/2 = 309
Thus, the number halfway between 69 and 549 is 309.
To check that our answer is correct, we subtract 69 from 309 and subtract 309 from 549 and compare the two numbers:
309 - 69 = 240
549 - 309 = 240
As you can see, the halfway number is 240 higher than 69 and 240 lower than 549. Therefore, our halfway between answer of 309 above is correct.
Halfway Between
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Halfway Between 69 and 550
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