Respuesta :

Answer:

[tex]79\frac{1}{3}\ \frac{feet}{second}[/tex]

Step-by-step explanation:

we know that

[tex]1\ hour=3,600\ seconds[/tex]

To convert hour to seconds multiply by 3,600

[tex]1\ mile=5,280\ feet[/tex]

To convert miles to feet multiply by 5,280

In this problem we have

[tex]50\ \frac{miles}{hour}[/tex]

Convert to ft/sec

so

[tex]50\ \frac{miles}{hour}=50(\frac{5,280}{3,600})=\frac{264,000}{3,600}\ \frac{feet}{second}[/tex]

Simplify

[tex]\frac{220}{3}\ \frac{feet}{second}[/tex]

Convert to mixed number

[tex]\frac{220}{3}\ \frac{feet}{second}=\frac{219}{3}+\frac{1}{3}=79\frac{1}{3}\ \frac{feet}{second}[/tex]

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