Respuesta :

Average speed is 12.6 miles per hour

Solution:

Given that team tool bella canoed [tex]15\frac{3}{4}[/tex] miles in [tex]\frac{5}{4}[/tex] hours

To find: average rate of speed in miles per hour

From given information,

[tex]distance = 15\frac{3}{4} \text{ miles } = \frac{15 \times 4+3}{4} = \frac{63}{4} \text{ miles}[/tex]

[tex]time = \frac{5}{4} \text{ hours}[/tex]

To find the speed we use the below formula,

[tex]speed = \frac{distance}{time}[/tex]

Substituting the given values we get,

[tex]speed = \frac{\frac{63}{4}}{\frac{5}{4}}\\\\speed = \frac{63}{4} \times \frac{4}{5} = \frac{63}{5} = 12.6[/tex]

Thus average speed is 12.6 miles per hour