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 .



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