Halfway Between 5 and 150

When you ask "What number is halfway between 5 and 150?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=5 and Y=150.

Halfway Between Line

To find the number halfway between 5 and 150, we use the following formula:

(X + Y)/2 = Halfway Between

When we enter 5 and 150 into our formula, we get:

(5 + 150)/2 = 77.5

Thus, the number halfway between 5 and 150 is 77.5.

To check that our answer is correct, we subtract 5 from 77.5 and subtract 77.5 from 150 and compare the two numbers:

77.5 - 5 = 72.5
150 - 77.5 = 72.5

As you can see, the halfway number is 72.5 higher than 5 and 72.5 lower than 150. Therefore, our halfway between answer of 77.5 above is correct.

Halfway Between
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Halfway Between 5 and 151
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