Define appropriate quantities for descriptive modeling.
Define numerator and denominator quantities for a rate
Problem
For the rate speed in \(\text{miles}~\text{per}~\text{hour}\), identify the numerator quantity and the denominator quantity.
Big Picture
What this problem is really about
Translate “per” into division before naming either part of the rate. The quantity before “per” belongs in the numerator and tells what is being counted, while the quantity after it belongs in the denominator and tells the unit over which that count is measured.
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