Question
John drove 138
miles in 3
hours. Use the formula d=rt
, where d
is distance, r
is rate, and t
is time, to find John's rate of speed in miles per hour.
Answers
GPT-4o mini
To find John's rate of speed using the formula \( d = rt \), we can rearrange the formula to solve for \( r \):
\[
r = \frac{d}{t}
\]
where:
- \( d \) is the distance (138 miles),
- \( t \) is the time (3 hours).
Now, we can substitute the values into the equation:
\[
r = \frac{138 \text{ miles}}{3 \text{ hours}} = 46 \text{ miles per hour}
\]
Therefore, John's rate of speed is **46 miles per hour**.
\[
r = \frac{d}{t}
\]
where:
- \( d \) is the distance (138 miles),
- \( t \) is the time (3 hours).
Now, we can substitute the values into the equation:
\[
r = \frac{138 \text{ miles}}{3 \text{ hours}} = 46 \text{ miles per hour}
\]
Therefore, John's rate of speed is **46 miles per hour**.