Question

doug paddled his kayak 540 meters, from one side of a lake to the other. he started 15 minutes after sunrise and moved at a constant velocity of 72 meters per minute across the lake. how much time did it take doug to cross the lake? write your answer to the tenths place. minutes

Explanation:

Step1: Use the formula \(t=\frac{d}{v}\)

We know that distance \(d = 540\) meters and velocity \(v=72\) meters per minute. The formula for time \(t\) (when velocity \(v\) is constant) is \(t=\frac{d}{v}\).

Step2: Substitute the values into the formula

Substitute \(d = 540\) and \(v = 72\) into \(t=\frac{d}{v}\), we get \(t=\frac{540}{72}\).

Step3: Calculate the value of \(t\)

\(\frac{540}{72}=7.5\)

Answer:

\(7.5\)