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Joe walked four over nine of a mile in four over five of an hour. What is his unit rate in miles per hour?

four ninths over four fifths = five over nine mile per hour
four fifths over four ninths = one and four fifths miles per hour
four ninths over four fifths = one and four fifths miles per hour
four fifths over four ninths = five over nine mile per hour

Answer :

four over nine of a mile in four over five of an hour 

= 4                      4
-----       /           ----
  9                       5

= 4                      5
-----      *           ----
  9                       4

= 20
-------
   36

= 5
-----
   9

answer is : four ninths over four fifths = five over nine mile per hour (first choice)
abidemiokin

The unit rate in miles per hour is five over nine mile per hour

The rate is also known as velocity or speed. The rate is calculated as:

Rate = Distance/Time

Given the following

Distance = 4/9 miles

Time = 4/5 hour

Rate  = 4/9 ÷ 4/5

Rate = 4/9 * 5/4

Rate = 5/9 miles/hr

Hence the unit rate in miles per hour is five over nine mile per hour

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