20. Suzette must commute a total of 34 miles to work. She first drives her car 10 miles to the train station
and then rides the train the rest of the way to work.
The average speed of the train is 15 mi/h faster than
the average speed of Suzette's car.
a. Express the time Suzette spends driving and the
time she spends on the train as rational expressions.
b. It takes Suzette a total of 1 hour to get to work.
Write and solve an equation to find the average
speed of Suzette's car.
c. Does Suzette spend a greater amount of time
driving or on the train? Explain.
S