Answer:
[tex]2\frac{2}{19}[/tex] cases does he hear per hour.
Step-by-step explanation:
Unit rate is expressed as a quantity of 1, such as 3 feet per second or 6 miles per hour, they are called unit rates.
Given: Jerry hears five cases every two and three eights hours.
⇒ 5 cases for every [tex]2\frac{3}{8} =\frac{19}{8}[/tex] hours
or we can write this as;
For every [tex]\frac{19}{8}[/tex] hours he hears 5 cases.
Unit rate per hour = [tex]\frac{5}{\frac{19}{8}} = \frac{5 \times 8}{19} = \frac{40}{19}=2\frac{2}{19}[/tex] cases.
Therefore, he hears [tex]2\frac{2}{19}[/tex] cases per hour at this constant rate.
