Verified Answer :

Joe walked 4/9 of a mile in 4/5 of an hour.
4/9 mile= 715.264 metres
4/5 hour= 48 minutes
715.264/48= 14.902 metres/ minute
14.902 x 60= 894.12 metres/hour.    
                   = 0.556 miles/ hour.

Answer:

Joe walked \(\frac{5}{9}\) miles/hour.

Step-by-step explanation:

Joe walked \(\frac{4}{9}\) of a mile in \(\frac{4}{5}\) of an hour.

We can rewrite this statement as

Joe walked in each hour = \(\frac{\frac{4}{9} }{\frac{4}{5} }\)

                                         = \(\frac{4}{9}\) × \(\frac{5}{4}\)

                                         = \(\frac{5}{9}\) miles per hour.

Joe walked \(\frac{5}{9}\) miles/hour.