When you ask "What number is halfway between 15 and 162?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=15 and Y=162.
To find the number halfway between 15 and 162, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 15 and 162 into our formula, we get:
(15 + 162)/2 = 88.5
Thus, the number halfway between 15 and 162 is 88.5.
To check that our answer is correct, we subtract 15 from 88.5 and subtract 88.5 from 162 and compare the two numbers:
88.5 - 15 = 73.5
162 - 88.5 = 73.5
As you can see, the halfway number is 73.5 higher than 15 and 73.5 lower than 162. Therefore, our halfway between answer of 88.5 above is correct.
Halfway Between
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Halfway Between 15 and 163
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