We want to get Mary's running speed and biking speed. We will get that her running speed is 5 mi/h, while her biking speed is 10 mi/h.
Finding the speed:
First, you need to remember that speed is defined as the rate at which the position changes with respect to the time.
Then we can write:
When she runs, she completes a distance of 10 miles in a time of 2 hours, then her running speed is:
[tex]S_R =\frac{10mi}{2h} = 5 mi/h[/tex]
When she bikes, she completes that distance in 1 hour, then her biking speed is:
[tex]S_B = \frac{10mi}{1h} = 10mi/h[/tex]
If you want to learn more about speed, you can read:
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