When you ask "What number is halfway between 71 and 170?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=71 and Y=170.
To find the number halfway between 71 and 170, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 71 and 170 into our formula, we get:
(71 + 170)/2 = 120.5
Thus, the number halfway between 71 and 170 is 120.5.
To check that our answer is correct, we subtract 71 from 120.5 and subtract 120.5 from 170 and compare the two numbers:
120.5 - 71 = 49.5
170 - 120.5 = 49.5
As you can see, the halfway number is 49.5 higher than 71 and 49.5 lower than 170. Therefore, our halfway between answer of 120.5 above is correct.
Halfway Between
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Halfway Between 71 and 171
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