When you ask "What number is halfway between 49 and 290?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=49 and Y=290.
To find the number halfway between 49 and 290, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 49 and 290 into our formula, we get:
(49 + 290)/2 = 169.5
Thus, the number halfway between 49 and 290 is 169.5.
To check that our answer is correct, we subtract 49 from 169.5 and subtract 169.5 from 290 and compare the two numbers:
169.5 - 49 = 120.5
290 - 169.5 = 120.5
As you can see, the halfway number is 120.5 higher than 49 and 120.5 lower than 290. Therefore, our halfway between answer of 169.5 above is correct.
Halfway Between
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Halfway Between 49 and 291
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