Chadwick Gray
03/03/2024 · Elementary School
From Whakatāne she drove 85 km to Rotorua. The trip took her 1 hour and 15 minutes. Calculate her average speed.
UpStudy ThothAI Solution
Tutor-Verified Answer
Step-by-step Solution
To calculate the average speed, you can use the formula:
\[
\text{Average Speed} = \frac{\text{Total Distance}}{\text{Total Time}}
\]
1. **Total Distance**: 85 km
2. **Total Time**: 1 hour and 15 minutes
First, convert the time into hours.
1 hour and 15 minutes is equal to:
\[
1 \text{ hour} + \frac{15 \text{ minutes}}{60} = 1 + 0.25 = 1.25 \text{ hours}
\]
Now, plug the values into the average speed formula:
\[
\text{Average Speed} = \frac{85 \text{ km}}{1.25 \text{ hours}} = 68 \text{ km/h}
\]
Therefore, her average speed was **68 km/h**.
Quick Answer
Her average speed was 68 km/h.
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