When you ask "What number is halfway between 47 and 154?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=47 and Y=154.
To find the number halfway between 47 and 154, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 47 and 154 into our formula, we get:
(47 + 154)/2 = 100.5
Thus, the number halfway between 47 and 154 is 100.5.
To check that our answer is correct, we subtract 47 from 100.5 and subtract 100.5 from 154 and compare the two numbers:
100.5 - 47 = 53.5
154 - 100.5 = 53.5
As you can see, the halfway number is 53.5 higher than 47 and 53.5 lower than 154. Therefore, our halfway between answer of 100.5 above is correct.
Halfway Between
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Halfway Between 47 and 155
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