Answer:
Her unit rate is less than that of Terrance but more than that of Jesse.
Step-by-step explanation:
Since,
\(\text{Rate of travelling}=\frac{\text{ Distance}}{\text{Time}}\)
For sandra,
Distance = 8 miles, time = 45 minutes = \(\frac{45}{60}\) = 0.75 hours,
( ∵ 1 hour = 60 minutes )
Thus, the unit rate of Sandra = \(\frac{8}{0.75}\approx 10.67\text{ miles per hour}\)
For Terrance,
Distance = 6 miles, time = \(\frac{1}{2}\) hour = 0.5 hour,
Thus, the unit rate of Terrance = \(\frac{6}{0.5}\approx 12\text{ miles per hour}\)
For Jesse,
Distance = 2 miles, time = 15 minutes = \(\frac{15}{60}\) hour = 0.25 hour,
Thus, the unit rate of Jesse = \(\frac{2}{0.25}\approx 8\text{ miles per hour}\)
Hence, Sandra's unit rate is less than that of Terrance but more than that of Jesse.
