When you ask "What number is halfway between 47 and 171?" 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=171.
To find the number halfway between 47 and 171, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 47 and 171 into our formula, we get:
(47 + 171)/2 = 109
Thus, the number halfway between 47 and 171 is 109.
To check that our answer is correct, we subtract 47 from 109 and subtract 109 from 171 and compare the two numbers:
109 - 47 = 62
171 - 109 = 62
As you can see, the halfway number is 62 higher than 47 and 62 lower than 171. Therefore, our halfway between answer of 109 above is correct.
Halfway Between
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Halfway Between 47 and 172
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