Respuesta :
Answer:
The rate of cases is [tex]\frac{40}{19}[/tex] per hour
Step-by-step explanation:
we are given
Total number of cases =5
total time is
[tex]=2\frac{3}{8}[/tex] hour
we can simplify it
total time is
[tex]=\frac{2\times 8+3}{8}[/tex] hour
[tex]=\frac{19}{8}[/tex] hour
we can use formula
rate of cases = ( total number of cases)/( total time)
now, we can plug values
Rate of cases is
[tex]=\frac{5}{\frac{19}{8} }[/tex]
[tex]=\frac{40}{19}[/tex]
Answer: -Jerry hears [tex]2\frac{2}{19}[/tex] per hour.
Step-by-step explanation:
Since time is given in mixed fraction [tex]2\frac{3}{8}[/tex] , thus first convert it into improper fraction
Time=[tex]\frac{19}{8}[/tex] hours
The total number of cases Jerry hears in =5 cases
⇒The number of cases Jerry hears in 1 hour
[tex]=\frac{5}{\frac{19}{8}}\\\\=\frac{5\times8}{19}\\\\=\frac{40}{19}=2\frac{2}{19}[/tex] cases per hour.
Thus, Jerry hears [tex]2\frac{2}{19}[/tex] cases per hour .