Final answer:
To calculate the time it took for Cassie to walk to her friend's house, we can use the formula time = distance / speed. Given that Cassie walked a distance of 205 m with an average speed of 1.40 m/s, the trip took her 146 s.
Step-by-step explanation:
To calculate the time it took for Cassie to walk to her friend's house, we can use the formula time = distance / speed. Given that Cassie walked a distance of 205 m with an average speed of 1.40 m/s, we can substitute these values into the formula to find the time: time = 205 m / 1.40 m/s = 146.43 s. Rounding to the nearest whole number, we can conclude that the trip took her 146 s.