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Verified Answer :

1/9 * 54/1 = 54/9.

So she is walking 6mph.

Answer:

\(\frac{54}{9}\text{ miles per hour}\)  

Step-by-step explanation:

Unit rate is the units of first quantity in one unit of second quantity.

Given,

Number of miles walked = \(\frac{1}{9}\),

Number of hours = \(\frac{1}{54}\)

Thus, the unit rate

\(=\frac{\text{Number of miles walked}}{\text{Number of hours}}\)

\(=\frac{1/9}{1/54}\)

\(=\frac{54}{9}\)

= 6 miles per hour