Respuesta :

You know how many miles Kelly walked in 1/10 hour. To find the speed in miles per hour you have to find how much she'll walk in 1 hour:

[tex]s=\frac{\frac{1}{4}mi}{\frac{1}{10}h}=\frac{5}{2}\frac{mi}{h}=2.5mi/h[/tex]

The average speed is 2.5 mi/h

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