When you ask "What number is halfway between 9 and 589?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=9 and Y=589.
To find the number halfway between 9 and 589, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 9 and 589 into our formula, we get:
(9 + 589)/2 = 299
Thus, the number halfway between 9 and 589 is 299.
To check that our answer is correct, we subtract 9 from 299 and subtract 299 from 589 and compare the two numbers:
299 - 9 = 290
589 - 299 = 290
As you can see, the halfway number is 290 higher than 9 and 290 lower than 589. Therefore, our halfway between answer of 299 above is correct.
Halfway Between
Find halfway between two other numbers here!
Halfway Between 9 and 590
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