Question

A runner wants to run 10.4 km . she knows that her running pace is 6.5 miles per hour. how many minutes must she run?

Answer 1

59.65 minutes

Step-by-step explanation:

In order to solve this we first have to convert the velocity that she can run into kilometers, we know that a mile is equal to 1,609 kilometers, so we just have to multiply:

`(1mile)/(1.609 kilometers)=(6.5 miles)/(x) \\\x=frac{6.5*1.609}{1} \\x=10.46 lometers/hour`

So we know that she runs 10,46 kilometers in 60 minutes or one hour now we just have to divide the kilometers that she wants to run by the velicity she can run:

`Time=(distance)/(velocity) \\Time=(10.4)/(10.46) \\Time= 59.65`

She would take 59.65 minutes to run 10.4 kilometers.

Answer 2

To determine how many minutes the runner should run, we need data on her velocity and the total distance of the track. We calculate as follows:

total distance = 10.4 km
velocity = 6.5 miles per hour = 0.17436 km / min

time = 10.4 / 0.17436
time = 59.65 min