When you ask "What number is halfway between 7 and 38?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=7 and Y=38.
To find the number halfway between 7 and 38, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 38 into our formula, we get:
(7 + 38)/2 = 22.5
Thus, the number halfway between 7 and 38 is 22.5.
To check that our answer is correct, we subtract 7 from 22.5 and subtract 22.5 from 38 and compare the two numbers:
22.5 - 7 = 15.5
38 - 22.5 = 15.5
As you can see, the halfway number is 15.5 higher than 7 and 15.5 lower than 38. Therefore, our halfway between answer of 22.5 above is correct.
Halfway Between
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