Respuesta :
Answer:
Jennifer's speed is 2.4 miles/hour
Kamlee's speed is 2 miles/hour
Step-by-step explanation:
To find their speed,
Speed can be determined from the formula below,
[tex]Speed = \frac{Distance}{Time}[/tex]
Also, to determine the speed in miles per hour (miles/hour), we will convert the time spent by each of them to hour (NOTE: 60 minutes = 1 hour)
For Jennifer,
Distance = 4/5 miles
Time = 20 mins (Convert to hour)
∴Time = (20/60) hour = 1/3 hour
Hence,
[tex]Speed = \frac{Distance}{Time}[/tex]
[tex]Speed = \frac{4/5 miles}{1/3hour}[/tex]
[tex]Speed = \frac{4}{5} \times \frac{3}{1}[/tex]
[tex]Speed = \frac{12}{5}[/tex]
[tex]Speed = 2.4 miles/hour[/tex]
Hence, Jennifer's speed is 2.4 miles/hour
For Kamlee,
Distance = 5/6 miles
Time = 25 minutes (Convert to hour)
Time = (25/60) hour = 5/12 hour
Hence,
[tex]Speed = \frac{Distance}{Time}[/tex]
[tex]Speed = \frac{5/6miles}{5/12 hour}[/tex]
[tex]Speed = \frac{5}{6} \times \frac{12}{5}[/tex]
[tex]Speed = 2 miles/hour[/tex]
Hence, Kamlee's speed is 2 miles/hour
