When you ask "What number is halfway between 48 and 289?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=48 and Y=289.
To find the number halfway between 48 and 289, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 48 and 289 into our formula, we get:
(48 + 289)/2 = 168.5
Thus, the number halfway between 48 and 289 is 168.5.
To check that our answer is correct, we subtract 48 from 168.5 and subtract 168.5 from 289 and compare the two numbers:
168.5 - 48 = 120.5
289 - 168.5 = 120.5
As you can see, the halfway number is 120.5 higher than 48 and 120.5 lower than 289. Therefore, our halfway between answer of 168.5 above is correct.
Halfway Between
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Halfway Between 48 and 290
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