Concept explainers
To Justify:If the difference between a positive mixed number and a negative mixed number always, sometime, or never positive.
Explanation of Solution
Suppose the positive mixed number
And the negative mixed number
It depends on what the sequence of terms can be.
If we assume that a positive mixed number is the first term and the negative mixed number is the second term.
As per the question, the difference between the positive and negative mixed number
Calculation:
Sincesubtracting a negative result into a positive.
But, after reversing order with the same operation, we get
Therefore, it goes with "sometimes".
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