Answer: 3 miles per hour.
Step-by-step explanation:
Given: Distance traveled by Seth = \(1\frac{1}{4}\ miles\)
Convert into improper fraction, we get
Distance traveled by Seth = \(\frac{5}{4}\ miles\)
Time taken by Seth to travel the given distance = \(\frac{5}{12}\ hour\)
The unit rate of Seth = \(\frac{distance}{time}=\frac{\frac{5}{4}}{\frac{5}{12}}=\frac{12}{4}=3\ miles\ per\ hour\)
Hence, the unit rate of Seth = 3 miles per hour