Question

jess rides her bike 3/4 mile in 4 minutes.

what is her average speed in miles per hours?

Answer 1

To find Jess's average speed in miles per hour, we can use the formula:

\[
\text{Speed} = \frac{\text{Distance}}{\text{Time}}
\]

1. **Distance**: Jess rides \( \frac{3}{4} \) miles.
2. **Time**: Jess rides for 4 minutes. To convert this to hours, we can divide by 60:

\[
\text{Time in hours} = \frac{4 \text{ minutes}}{60} = \frac{1}{15} \text{ hours}
\]

Now we can calculate her average speed:

\[
\text{Speed} = \frac{\frac{3}{4} \text{ miles}}{\frac{1}{15} \text{ hours}} = \frac{3}{4} \times \frac{15}{1} = \frac{3 \times 15}{4 \times 1} = \frac{45}{4} \text{ miles per hour}
\]

\[
\frac{45}{4} = 11.25 \text{ miles per hour}
\]

Thus, Jess's average speed is **11.25 miles per hour**.