When you ask "What number is halfway between 47 and 70?" we assume you mean the number in the exact middle of the two numbers on a number line, as illustrated below, where X=47 and Y=70.
To find the number halfway between 47 and 70, we use the following formula:
(X + Y)/2 = Halfway Between
When we enter 47 and 70 into our formula, we get:
(47 + 70)/2 = 58.5
Thus, the number halfway between 47 and 70 is 58.5.
To check that our answer is correct, we subtract 47 from 58.5 and subtract 58.5 from 70 and compare the two numbers:
58.5 - 47 = 11.5
70 - 58.5 = 11.5
As you can see, the halfway number is 11.5 higher than 47 and 11.5 lower than 70. Therefore, our halfway between answer of 58.5 above is correct.
Halfway Between
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Halfway Between 47 and 71
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