Pierre is rowing his kayak on a lake. He moves miles in 18 minutes. At this rate, how far would he move in 30 minutes?

1 answer

To calculate how far Pierre can move in 30 minutes, we first need to determine his speed in miles per minute.

  1. Calculate speed:

    • Pierre moves \( x \) miles in 18 minutes. Therefore, his speed in miles per minute is: \[ \text{Speed} = \frac{x \text{ miles}}{18 \text{ minutes}} \]
  2. Calculate distance in 30 minutes:

    • To find out how far he can go in 30 minutes, we multiply his speed by 30 minutes: \[ \text{Distance in 30 minutes} = \text{Speed} \times 30 = \left(\frac{x}{18}\right) \times 30 \]

    Simplifying this: \[ \text{Distance in 30 minutes} = \frac{30x}{18} = \frac{5x}{3} \]

So, if Pierre moves \( x \) miles in 18 minutes, he would move \( \frac{5x}{3} \) miles in 30 minutes.

To obtain a numerical distance, you would need the value of \( x \), which is the distance he traveled in the 18 minutes.