Christy rode her bike 60 miles in 5 hours.
a. What was her average speed in miles per hour?
b. What was the average number of minutes it took to ride each
mile?

Question

Christy rode her bike 60 miles in 5 hours. a. What was her average speed in miles per hour? b. What was the average number of minutes it took to ride each mile?

UpStudy AI · Accepted Answer

**Step 1: Calculate the average speed.**

Christy rode $$60$$ miles in $$5$$ hours. The average speed $$v$$ is given by:
$$
v = \frac{\text{distance}}{\text{time}} = \frac{60}{5} = 12 \text{ miles per hour}
$$

**Step 2: Calculate the average number of minutes per mile.**

First, convert the total time from hours to minutes:
$$
5 \text{ hours} = 5 \times 60 = 300 \text{ minutes}
$$
The average time per mile $$\tau$$ is:
$$
\tau = \frac{\text{total time in minutes}}{\text{distance in miles}} = \frac{300}{60} = 5 \text{ minutes per mile}
$$
**a. Christy's average speed was 12 miles per hour.** **b. It took her an average of 5 minutes to ride each mile.**

Christy rode her bike 60 miles in 5 hours.
a. What was her average speed in miles per hour?
b. What was the average number of minutes it took to ride each
mile?

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