Respuesta :

Answer: 66[tex]\frac{6}{9}[/tex] miles per hour

Step-by-step explanation:

300 miles * 1 hour/4 1/2 hours =

300 miles * 1 hour/(4+1/2) hours =

300 miles * 1 * 2  hour/((4+1/2) * 2) hours =

300 miles * 2 hours/(8+1) hours =

300 miles * 2 hours/9 hours =

300 * 2/9=

600/9=

(594+6)/9=

594/9 + 6/9=

66+6/9=66 6/9 miles per hour