When you ask "What number is halfway between 19 and 64?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=19 and Y=64.
To find the number halfway between 19 and 64, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 19 and 64 into our formula, we get:
(19 + 64)/2 = 41.5
Thus, the number halfway between 19 and 64 is 41.5.
To check that our answer is correct, we subtract 19 from 41.5 and subtract 41.5 from 64 and compare the two numbers:
41.5 - 19 = 22.5
64 - 41.5 = 22.5
As you can see, the halfway number is 22.5 higher than 19 and 22.5 lower than 64. Therefore, our halfway between answer of 41.5 above is correct.
Halfway Between
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Halfway Between 19 and 65
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