Respuesta :
Answer:
Bradely's average speed is 14.4 miles per hour.
Step-by-step explanation:
Average Speed tells the rate at which object is travelling his whole journey.
[tex]Average\ Speed\=\ \frac{Total\ distance\ traveled}{Total\ time\ taken}[/tex]
∴ [tex]Average\ Speed=\dfrac{6 + 6}{\frac{3}{8}+\frac{1}{4}}[/tex]
⇒ [tex]Average\ Speed=\dfrac{12}{\frac{3+2}{8}}[/tex]
⇒ [tex]Average\ Speed=\dfrac{12}{\frac{5}{8}}[/tex]
⇒ [tex]Average\ Speed=\frac{12}{5}\times 8[/tex]
⇒ Average Speed = 14.4 miles per hour
Thus, Bradely's average speed for traveeling his whole journey is 14.4 miles per hour.
