When you ask "What number is halfway between 7 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=7 and Y=170.
To find the number halfway between 7 and 170, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 7 and 170 into our formula, we get:
(7 + 170)/2 = 88.5
Thus, the number halfway between 7 and 170 is 88.5.
To check that our answer is correct, we subtract 7 from 88.5 and subtract 88.5 from 170 and compare the two numbers:
88.5 - 7 = 81.5
170 - 88.5 = 81.5
As you can see, the halfway number is 81.5 higher than 7 and 81.5 lower than 170. Therefore, our halfway between answer of 88.5 above is correct.
Halfway Between
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Halfway Between 7 and 171
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