Question

shawns engineering club is taking a trip by bus to a robotics fair. the fair is 175 miles from shawns school. the bus driver plans to stop and refuel after 2 hours, then complete the trip. the bus driver plans to drive at an average speed of 50 miles per hour. how many hours will the second - part of the trip take? write your answer as a whole number or a decimal.

Explanation:

Step1: Calculate distance in 2 hours

The speed is 50 miles per hour and time is 2 hours. Using the formula $d = s\times t$ (where $d$ is distance, $s$ is speed and $t$ is time), we have $d=50\times2 = 100$ miles.

Step2: Calculate remaining distance

The total distance is 175 miles. After traveling 100 miles, the remaining distance $d_{r}=175 - 100=75$ miles.

Step3: Calculate time for second - part

Using the formula $t=\frac{d}{s}$, with $d = 75$ miles and $s = 50$ miles per hour, we get $t=\frac{75}{50}=1.5$ hours.

Answer:

1.5