Question

A runner runs 4339 ft in 7.45 minutes. What is the runner's average speed in miles per hou 6.62 mi/hr O 0.110 mi/hr 6.618 mi/h e 582 mi/hr

Answer 1

Answer: The average speed of the runner is 6.618 miles/hr

Step-by-step explanation:

Average speed is defined as the ratio of total distance traveled to the total time taken.

To calculate the average speed of the runner, we use the equation:

`\text{Average speed}=\frac{\text{Total distance traveled}}{\text{Total time taken}}`

We are given:

Distance traveled = 4339 ft

Time taken = 7.45 mins

Putting values in above equation, we get:

`\text{Average speed of runner}=(4330ft)/(7.45min)=582.42ft/min`

To convert the speed into miles per hour, we use the conversion factors:

1 mile = 5280 ft

1 hr = 60 mins

Converting the speed into miles per hour, we get:

`\Rightarrow (528.42ft)/(min)* ((1miles)/(5280ft))* ((60min)/(1hr))\\\\\Rightarrow 6.618mil/hr`

Hence, the average speed of the runner is 6.618 miles/hr